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tony tweedaleReturn to Topwrote: > disinformation and doubletalk, i'm afraid. if you are stupid > enough to try to burn heavy metals and halogens, then you need > to be held to a public health standard, aka subpart O or > better. re: bif's vs. haz waste [hw] incinerator rcra/c > regulation: bif's need no cem's, no automatic cutoff's linked > to monitoring of upsets, no waste characterization, no public > input into permiting and no or weak trial burns and no risk > assesment, few limits on residue disposal, and less stringent > emission standards (e.g. the particulate standard, emissions > of which clearly *do* increase when burning haz waste in cement > kilns This is incorrect; a BIF facility will automatic waste feed cutoffs, CEMS, and must have waste characterization. They must pass compliance limits on emissions based on actual operating standards and must eventually have a trial burn. Risk assessments are a mandatory part of the BIF regulations and almost always err to the side of human health. Now does this stand for all BIFs - No. In some cases, regional or state permitting will be more lax than specified in the Federal standards (even though they are not supposed to be). But in the majority of cases a BIF facility must have much of what you said does not exist. Sam McClintock scmcclintock@ipass.net
sdef! wrote: > Why is all this BULLSHIT being crossposted > posted on the EF! newsgroup? Space colonization is the only long term solution of our environmental, economic and social problems. It will cost a small fraction of the NASA budget. The only obstacle on the path to space colonization is ignorance of environmentalists and space activists. You can learn the basics of space colonization technology from my book:Return to Top
The production of waste by households and the industries is very large and continuous throughout the year. A large part of this waste products has to be burned or dumped. Another part is recycled or recuperated. All these waste products are processed at specialised locations such as incinerators, dumps or recycling facilities. This implies the transport of refuse to these locations. Collection of wastes is in most circumstances done with a truck. Large-scale transport of big quantities can be done with trucks, trains and inland navigation vessels. If trucks are used, a lot of traffic-related problems can occur (noise and air pollution, accidents, etc..). Inland navigation vessels are generally more environment-friendly. Do you know of places where garbage is transported to it's processing facility(ies) by means of inland navigation vessels (barges) ? If you do, please tell me : from where to where, distance, how, which waste-products, which quantities. Please send your answer to any of the above questions or some other interesting information about this subject to : hugo.vandevoorde@ping.be Thank you very much, Tim Van de VoordeReturn to Top
rmg3@access5.digex.net (Robert Grumbine) wrote: [ boring numbers gone ] > Surface level solar insolation is approximately 240 W/m^2. >There are approximately 5E8*1E6 m^2 on the earth, 5E14. The >flux from fuels is, then, approximately 0.024 W/m^2. > > Comparing the gross averages is highly unrepresentative, however. >Almost all the anthropogenic release is concentrated in to very >small areas, easily only order 0.1% of the area of the earth. That >takes urban areas to 24 W/m^2, which is likely not negligable. I should have noted that as well, but the envelope was only a small one. The reasons for deciding to use the global numbers is that the national numbers would still be misleading - eg USA area and consumption would include diverse areas from Alaska. to California. I decided that heat flows were too hard, knowing that latitutinal balances change dramatically between the equator and the poles. It should provide an indication of the comparable effects of radiative forcing versus thermal pollution from the same amount of CO2 from fossil fuels assuming ( say ) 50% remains in the atmosphere. I have a feeling that the former will be more significant even at current concentrations. Bruce HamiltonReturn to Top
[alt.recovery.catholic removed as requested] bg364@torfree.net (Yuri Kuchinsky) writes: > Jayne Kulikauskas (jayne@mmalt.guild.org) wrote: > : yuku@io.org (Yuri Kuchinsky) writes: > > : > : "We don't need birth control. We need to end poverty. > : > > : > This is the sort of idiocy that results from following the mode of > : > primitive binary thinking. Either/or world-view. In the REAL WORLD: > : > > : > Birth control = end of poverty. > > : This statement is a much better example of primitive binary thinking > : than the quote from Marcia CCocllo. There are many factors involved in > : causing poverty. Simply supplying birth control without addressing > : economic injustice will not end poverty. Most supporters of birth > : control recognize this. > > A drop in population will automatically increase the per capita wealth. > So my statement is correct. To simplify the math, lets consider a population of two people. If person A has $2,000,000 and person B has nothing, the per capita wealth is $1,000,000. As B starves, she can contemplate that, per capita, she is a millionaire. As I said, economic injustice, that is, the distribution of wealth, must be addressed in order to end poverty. [] > : It is incredibily arrogant for you > : to claim the right to decide what the problems and solutions are > : for people on the other side of the world. > > So, it's OK for the Pope, but not OK for anyone else? The Pope does not tell anyone how many children they ought to have. He teaches that it is the right of the couple to decide this. He says that people have a right to weigh all the social, economic and population factors and decide for themselves on the number of children they think best. > : You have decided that your > : perceptions are the "REAL WORLD". Of course, this illustrates > : what I've been claiming all along, that population control denies > : people autonomy. People have the right to decide for themselves what > : problems they consider the highest priority and what they want to do > : about it. > > The Catholic Church always gave people autonomy! As you imply, there are examples of the RCC denying autonomy to people. I think it was wrong, don't you? It was wrong to do it in the name of God. It is wrong to do it in the name of preventing overpopulation. [] > : The "either/or" mentality illustrated by this story is on the part of > : the foreign countries who are sending birth-control pills to people > : who need medicine. This woman would not be complaining if they were > : sending both. > > How do you know what they are sending and not sending? I inferred it from the information available. It does not seem likely that she would complain about lack of medicine if there was medicine. > : This is a letter from a woman who is begging for > : help. She is explaining that the "help" currently being sent is > : inappropriate and unwanted. How can you claim to be motivated by the > : good of people in developing countries when you won't even listen to > : them? > > I've spent many years in 3 world countries unlike you. I have asked you several times to be more specific about your experiences in developing countries, but have never seen an answer. Exactly what did you do and see which made you so knowledgeable that you claim to understand the situation better than the people who live there? [] > : I don't read all your posts, but I have read a significant number. I > : have never seen you present research and evidence to support your > : claims. > > Why I don't present research? Because it would be a waste of time to > present research to convince a robot such as you. You have never tried presenting research to me, so you don't know how I would react. You are assuming that I am a robot. This is called prejudice. I suspect that really this is just an excuse. Perhaps there isn't any research. Or perhaps there is some but you are afraid that I will be able to demonstrate the flaws in it. > Most of the things I > say are self-evident and are understood as such by most people in these > ngs. Nobody except you complains about me not presenting research. I have seen many posts, including those by non-Catholics, disagreeing with the points you make. I don't know why people don't ask you for evidence. Perhaps its because they realize that there isn't any. I'm not asking you for it because I think it really exists. I'm asking for it to point out its absence. > really not worth the time, Jayne. You're a pathetic propagandist of a > known falsehood. You have no supporters. Who cares about you? You have completely run out of arguments, haven't you? > I understand such complains from you as a strategy to waste my time. A > poor strategy: I can see through your tricks so easily. I can go to the > WWW and find hundreds of relevant files full of "hard research" to post > here. But why bother? Most already know these things... Forgive me if I remain sceptical. > You should be greatful you found one individual who is willing to waste a > few minutes to provide you an appropritate reply. Yuri, you keep posting untrue statements about the Catholic Church of which I am a member. No matter how patently absurd your assertions are, there is a danger that people may come to believe them through your constant repitition. I believe that it is important to confront these statments with the truth. I would not mind if you did not reply to my posts. My duty is done once I have pointed out the falsehood of your claims. > Otherwise you would be > like John Lauzon spamming nonsense to the void. You seem to be implying that no one ever responds to John. How odd. I had noticed that you apparently have trouble keeping track of what you've written. It also appears that you are not aware of the authors of the posts to which you respond. > Jayne... another kook screaming into the void... You seem to be reaching new levels of invective. I hope this means that I am getting through to you. JayneReturn to Top
Dennis NelsonReturn to Topwrote: >The faster the neutrons used in the reactor the closer it is to a bomb and the >harder it is to control. The delayed neutrons in a normally fueled LWR create >stability in reactor control because they are emitted on the order of seconds, >not microseconds. I don't know the neutron dynamics in a fast neutron, liquid >metal cooled reactor. Can someone help me here? Fast reactors are also operated so that they are subcritical on prompt neutrons but supercritical on prompt + delayed neutrons. Plutonium does produce a smaller fraction of its neutrons as delayed neutrons, so the margins are a bit trickier. Control can also be supplied by inherent negative feedback. For example, in a fast reactor with metallic fuel elements, thermal expansion of the fuel can reduce the reactivity. There has recently been research on accelerator-driven reactors, including fast reactors. These do not need to use delayed neutrons at all, and operate considerably farther away from prompt criticality than conventional reactors (k ~ .95, perhaps; the closer k is to one the smaller the accelerator needs to be, but the smaller the reactivity swings that can be tolerated.) They also have improved neutron economics; an accelerator driven thermal reactor could destroy essentially all the plutonium fed into it. The government is moving along with plans to build an accelerator neutron source (in South Carolina) for producing tritium. Paul
Anders Jelmert wrote: > > You might wery well consider this "political crap". On the other hand, > such a characterization will work both ways, don't you think? Both for those > eager to augment, and those eager to diminish the perception of risks. > Statistical metaanalysises have obvious weaknesses, and I would guess > interpretations with some right could be said to be biased. > Methinks there are actors with an agenda on both sides in the EMF issue. > > For those who wants to keep their pet scare, I can assure you there are good > news around. Last number of Nature (vol385, no6611, 2.jan.97) has an editorial: > "Risk and the inadequacy of science". Sounds like gefundenes fressen for you, Tony. :-) > > On the other hand if you want onother opinion, you might want to look at > the Junk Science home page at: http://www.junkscience.com/ > Second opinions are rarely harmful. I'd suspect even less than EMF :-) the junk science home page is the biggest piece of junk science on the web. but i happen to be partially skeptical about emf health threats. nov. '96 _ehp_ (niehs) had a couple good study designs showing negative results, in a limited scope. tony tweedaleReturn to Top
looks like the thread is dead (or in coma). i tried to post this in response to a david gossman post a couple days ago, but couldn't. David Gossman wrote: > > Dennis Nelson wrote: > > My problem with cement kilns is that they receive special treatment under > > the law because they are classified as recyclers because they use the > > waste heat to produce cement. They therefor do not have the same requirements > > for monitoring and minimizing releases as do hazardous waste incinerators, > > even though they are burning the same things. Both facilities should have > > the same requirements to meet in minimizing effluents. > > This is a myth fabricated by the incineration industry and some > environmental groups. Check out the 195 pages of 40CFR part 266 vs 4 > pages of part 264 subpart O. Commercial incinerators don't even have > metal limits in the current regulations. Nor are cement kilns > classified as recyclers. They are BIFs. How do you require a cement > kiln to minimize effluents like an incinerator? As has been said before > they exist as a source wether or not they burn waste. All emissions > from incinerators are from the waste combustion. If incinerators were > required to have the net impact that a cement kiln does burning waste > they would all be shut down. disinformation and doubletalk, i'm afraid. if you are stupid enough to try to burn heavy metals and halogens, then you need to be held to a public health standard, aka subpart O or better. re: bif's vs. haz waste [hw] incinerator rcra/c regulation: bif's need no cem's, no automatic cutoff's linked to monitoring of upsets, no waste characterization, no public input into permiting and no or weak trial burns and no risk assesment, few limits on residue disposal, and less stringent emission standards (e.g. the particulate standard, emissions of which clearly *do* increase when burning haz waste in cement kilns (ck)). hwi's need to do all these critical things. bad enough. but what about the fundamental intelligence of burning hw in cemment & aggregate kilns? (a lot of my argument from here on out comes from edward kleppinger et al.'s '90 "cement kiln incineration of haz. waste: a critique", ewk consultants, wash. dc). is the fundamental design of a ck appropriate for haz waste? despite generally high temp & residence time, turbulance and oxygen are generally deficient. O2 is always scarce in the kiln. turbulance, given the large masses involved, is problematic. these masses also lend to even more pyrolytic conditions. many hw's are solids, bottoms, sediments & water containing. in the length of a kiln, with or without hw, there are large zones of lower temp and minimal turbulence. turbulence is in the mass, not the flame. the flame in a ck tends to be lazy and is actually extingushed from time to time. as for [residence] time, kepplinger says less than 30% is spent @ > 2,000F--a few seconds at most (and an epa report cited by him apparantly says gas residencce time in high temp zone is much less), in only 30% of the length. further, aren't liq.haz wastes injected to travel uphill? upsets *are* controlable, just not as fast as in a hwi--but the industry fights auto shut-off. whereas; hwi's are designed from ground up for more efficient destruction of hw, incl. afterburners (a near physical impossibility at ck's, i understand). and ck high temp's are limited to the begining of combustion only. clearly given a $100 million or more investment, a hwi is going to try to stay within its permit! what about management--hwi manager's live, breath & sleep thinking of haz waste and how it burns; ck mangrs are thinking of producing portland cement. "why stop the burn just because of an upset? it's not affecting my portland cement--and screw the hw p.i.c.'s, metals & dioxins.". my files are replete w/ horrible stories about how hw's are fed into some ck's, how even the most rudimentary monitoring & alarms are turned off, etc. etc. co and hc's are high in non-hw ck's (kleppinger debunks the industry's theory about co orginating from a hi temp equilibrium w/ co2, showing that this source of co must drop way down below 2,000F. he summarizes a controlled experim. data showing it originates from poor combustion). clearly the ck industry had epa in its pockets. epa earlier was against the idea. see epa's hugh kaufman's memo's to reilly & their attachments documnting the industry's illegal (under admin. proceedure act, apa) influence on the bif rcra/c rule; and its amazingly illegal modification of the rule post-promulgation. epa also admitted on paper and in public that the chief attraction of the rule was its lenient regs and money saving features, not its public health benefits. kleppinger & others have already refuted epa's assertion that ck's are a good design to burn hw in. finally, economics--the real reason for the rule and for this thread. epa on the one hand says it's not hw (ie under sara '84 it's not reported as hw generated, it's hw reduced if its sent to a bif (eg ck) only), but on the other (also sara) requires sufficient national capacity to handle hw's--thus the drive for ck & bif hw burning. since cement materials are very cheap, the only motive to burn hw is profit. the partial high temp of a ck is there to make cement--it isn't designed, and doesn't work to detroy hw. despite the obviosness that we can tremendously reduce haz waste generation, even w/ *existing* techn's (eg u.s. ota '87, that we can do it now (50% reduction)). tony tweedaleReturn to Top
D. Braun (dbraun@u.washington.edu) wrote: : I thought the connection was apparent. Disarmament means no more weapons : production, and destruction/recycling in energy plants of the : delivery vehicles/plutonium, or other scenarios. Eventually, the Russian : mafia or the like will find it more difficult to procure a bomb. The : second part of my post is important, too; a more progressive foreign : policy would tend not to produce terrorist pissed off at the US, for real : or perceived insults. Abandoning MADD would mean that we would actually : have to negotiate and have political solutions worked out. It certainly : would not be an over-night process. Once the major powers agree to disarm, : international sanctions could be brought against those countries that : persist in having nuke weapons programs. What are you going to do? Nuke them? : I would even settle for a token "MADD" policy after disarmament-- say, one : nuke under each country's capital---with the "red button" in the other : major powers' control. Why not? It would be simple, cheap, and : instantaneous. Easy to detonate---you could set them off via : the internet with the proper codes. Then some fanatical nutcase would hack the codes and hold the world for ransom. Duh! R.A.H. Elf of the redwoods, Sonoma Valley, Breakfast Cereal Country. "When minimum wage was an issue, the press found a minimum wage mother with two kids in five minutes...but they can't find one victim of the Whitewater Investments... and these people lost their retirement incomes!" - AnonymousReturn to Top
Ok this should settle this issue for the last time, everybody.... 1/1/1 First day that we count after BC. This is arbitrary since Christ was born someother date (like 6BC or something). But still this is the day we start counting from, period. 12/31/1 the last day of the first year. Everyone should party for the completion of the first year. 1/1/2 New year, begining of the SECOND year, but only ONE year has gone by so far. as the year progresses we past 1.1,1.2,1.5, 1.9 years, right up to the the next new year. 1/1/3 New year, begining of the THIRD year, but only TWO year has gone by so far. 1/1/10 New year, begining of the TENTH year, but only NINE year has gone by so far. 1/1/11 New year...New DECADE, begining of the 11th year, but only TEN year has gone by so far. 1/1/1000 New year, begining of the 1000th year, but only 999 years has gone by so far. 1/1/1001 New year....new millineum, begining of the 1001st year, but only 1000 years has gone by so far. 1/1/2000 New year, begining of the 2000th year, but only 1999 years has gone by so far. 1/1/2001 New year...new millineum, begining of the 2001st year, but only 2000 years has gone by so far. In article <5b7cqn$id2$1@storm.lightning.net>, mythster@pouch.com says... > >>I didn't think I would jump into this thread, but...since all calendar >>systems (as far as I know) are by design artificial, wouldn't the real >>significance of "the millenium" lie in our cultural expectations, etc., >>rather than in a precisely-timed (but presumably artificial) moment, so >>that whether or not it really "is" or "isn't" the start of the millenium, >>the collective mental switch will be thrown as soon as we start writing >>those 2's in front of all the dates? > >>Or did I miss the original point of the debate altogether? > >NO, you basically figured out the absurdity of this thread on your >very first posting! (Something that the majority of its participants >are still trying to do). The problem is that they wouldn't know common >sense if it came up and bit them in the ass!! It doesn't take a rocket >scientist or a Harvard mathematician to figure this one out. They >haven't realized that there is no "ritght" answer. Time is a >"consensus" phenomenon. It can't be measured by any man-made date. >Thank god I don't have to convince you of that. But, the rest of these >bozos are beyond hope! > >"Is it tomorrow, or just the end of time?" -Jimmi Hendrix > > > > > >Return to Top
Erik Max Francis wrote: > > Richard Mentock wrote: > > > Origin point: Clearly, the person who devised the calendar intended > > the origin of the calendar to be the birth of Christ, 12/25/1BC. > > (intent, not fact) > > "Clearly"? How do you figure that? We _know_ that Christ wasn't born on > Dec 25, even if he was a real person, and we're pretty sure if it was, it > wasn't in BC 1 or AD 1. > > > Ordinals: That makes 1BC the first year. 1999 the 2000th year. > > If that were the case Dec 25 would called Jan 1. It's not, so your > argument is flawed. Why would then Dec 25 be called Jan 1? Are you only disagreeing that Dionysius Exiguus intended 12/25/1BC to be the birthdate of Christ? That appears to be fairly well documented (although it is often *assumed* that the intent was 12/25/1 AD, because of this millennium mess.) Are you now saying that *if* the intent of the original calendar establisher was to place Christ's birth at what we call 12/25/1BC, you might temper your criticism a bit? -- D. mentock@mindspring.com http://www.mindspring.com/~mentock/index.htmReturn to Top
Ron Jeremy wrote: > > If you are trying to prove that no US utilities are ordering nukes, you > win! But that has *nothing* to do with whether they are safe, clean, or > economical. There are other countries building nukes right now, does > that disprove you point? There are 109 operating reactors in the What countries and what are the funding details. My guess is that it is more corporate welfare for the big U.S. reactor companies such as Westinghouse, who are crying in their beer on Capitol Hill over their economic woes. Since they can't sell the plants in the U.S. they get Congress to fund their plants in other parts of the world under the rubric of foreign aid or nuclear diplomacy. The U.S. and Germany are funding new nuke-plants in the former eastern bloc countries of Slovenia, Slovakia and the Czech Republic, over the vehement opposition of their neighbor Austria. Several years ago Austria had a plebicite in which the total population voted to go non-nuclear. They even voted to fund a bond issue to compensate a company with a nearly completed reactor and then close it down. They offered their neighbors to the north, east and south money and help in building non-nuclear power plants. Then along came the U.S. with an offer to the three Austrian neighbors to reconstruct and modernize their nuke plants for nothing. Where do we come off funding the building of plants thousands of miles from our shores, over the intense opposition of such neighboring countries as Austria just so we can keep the corporate welfare dollars flowing to companies such as Westinghouse in direct opposition to the clear sentiment of the American people. We are also doing the same thing in Korea and Indonesia. When will all this nonsense and insanity end? > US, people claim they are unsafe and/or killing us. I find plenty to > debate about. Actually, most polls (with what little weight they carry) > show broad acceptance of nuclear power. > Don't think so! If they did we would still be ordering new nuke plants. > : Several years ago I heard that it had been a decade or more since > : anybody even applied for a permit in the USA. I believe > : that this is largely because the USA has enacted "cradle to grave" > : responsibility on (toxic) pollution. That responsibility now cannot > : be alienated. (All owners of toxins in the chain of ownership are > : forever responsible for it.) More nonsense! The major push for the new Nuclear Waste Policy Act is to relieve the utilities of responsibility for their own waste by dumping it on the Government. They will not even be responsible for accidents during transportation because under the provisions of the Act the Government will take "ownership" of the waste at the point of departure not the point of delivery. > > If we've enacted "cradle to grave" why are there so many Superfund sites > out there awaiting cleanup. I guess pumping toxic chemicals into the > environment by the ton is "responsibility". Nukes get a bad rap because > they account for their "waste" unlike many other utilities. What's the > half life of som common toxic substances? Do they render themselves > harmless after a period of time. > None of these corporate criminals assumes responsibility for their waste, and the nuke-folks have a worse reputation than most for chemical as well as radiological hazard irresponsibility. Look at the horrible mess they left in West Valley, near Buffalo, NY where there are as many chemical problems as radiological ones. Dennis NelsonReturn to Top
Jeff Skinner (tigger@bnr.ca) wrote: : OK, here's a testable hypothesis. Can we have a poll on this, Go ahead, Jeff. Who am I to stop you? : since Yuri is : claiming that histake on all this is obviousto any intelligent person ? Yes, from my experience talking to people about this, I know that the great majority of our contemporaries understand global overpopulation as a big problem. : 2) Or dismiss anything I say insofar as I'm obviously an idiot and a : pawn of the Pope. (Applies to anyone who contradicts him.) No, you're probably not an idiot. I assume that you're a Libertarian, because, as it happens, these are my main opponents when the question of overpopulation comes up. It's interesting how few Catholics feel like defending the Vatican inhumanity. I think they know that the Vatican is evil. It's the atheists who defend the Pope nowadays mostly -- a big irony (seeing that the Inquisition had a warm spot for the atheists in its time!). Jayne is a crazy and lonely bird here to speak up for the Pope, but this is probably because she's a Catholic convert... No, Libertarians are mostly not idiots. It is simply a weird intellectualizing cult that is as confused as it is possible to be in their denying the importance of preserving the Nature and the environment. Regards, Yuri. -- =O= Yuri Kuchinsky in Toronto =O= --- a webpage like any other... http://www.io.org/~yuku --- We should always be disposed to believe that that which appears white is really black, if the hierarchy of the Church so decides === St. Ignatius of LoyolaReturn to Top
Humans as Cancer (part 1 of 2) by A. Kent MacDougall When a spot on a person's skin changes color, becomes tough or rough and elevated or ulcerated, bleeds, scales, scabs over and fails to heal, it's time to consult a doctor. For these are early signs of skin cancer. As seen by astronauts and photographed from space by satellites, millions of manmade patterns on the land surface of Earth resemble nothing so much as the skin conditions of cancer patients. The transformation of the natural contours of the land into the geometric patterns of farm fields, the straightening of meandering rivers into canal-like channels, and the logging of forests into checkerboard clearcuts all have their counterparts in the loss of normal skin markings in cancer victims. Green forests logged into brown scrub and overgrazed grasslands bleached into white wasteland are among the changes in Earth's color. Highways, streets, parking lots and other paved surfaces have toughened Earth's surface, while cities have roughened it. Slag heaps and garbage dumps can be compared to raised skin lesions. Open-pit mines, quarries and bomb craters, including the 30 million left by US forces in Indochina, resemble skin ulcerations. Saline seeps in inappropriately irrigated farm fields look like scaly, festering sores. Signs of bleeding include the discharge of human sewage, factory effluents and acid mine drainage into adjacent waterways, and the erosion of topsoil from deforested hillsides to turn rivers, lakes and coastal waters yellow, brown and red. The red ring around much of Madagascar that is visible from space strikes some observers as a symptom that the island is bleeding to death. If skin cancer were all that ailed Earth, the planet's eventual recovery would be less in doubt. For with the exception of malignant melanoma, skin cancer is usually curable. But the parallels between the way cancer progresses in the human body and humans' progressively malignant impact on Earth are more than skin-deep. Consider: Cancer cells proliferate rapidly and uncontrollably in the body; humans continue to proliferate rapidly and uncontrollably in the world. Crowded cancer cells harden into tumors; humans crowd into cities. Cancer cells infiltrate and destroy adjacent normal tissues; urban sprawl devours open land. Malignant tumors shed cells that migrate to distant parts of the body and set up secondary tumors; humans have colonized just about every habitable part of the globe. Cancer cells lose their natural appearance and distinctive functions; humans homogenize diverse natural ecosystems into artificial monocultures. Malignant tumors excrete enzymes and other chemicals that adversely affect remote parts of the body; humans' motor vehicles, power plants, factories and farms emit toxins that pollute environments far from the point of origin. A cancerous tumor continues to grow even as its expropriation of nutrients and disruption of vital functions cause its host to waste away. Similarly, human societies undermine their own long-term viability by depleting and fouling the environment. With civilization as with cancer, initial success begets self-defeating excess. It's easy to dismiss the link between cancer the disease in humans and humans as a disease on the planet as both preposterous and repulsive--or as a mere metaphor rather than the unifying hypothesis its leading proponent claims for it. Only a handful of limited-circulation periodicals, including this one (see Forencich 1992/93), have granted the concept a respectful hearing. Accepting the humans-as-cancer concept comes easier if one also accepts the Gaia hypothesis that the planet functions as a single living organism. To be sure, the Earth is mostly inanimate. Its rocky, watery surface supports only a relatively thin layer of plants, animals and other living organisms. But so, too, is a mature tree mostly dead wood and bark, with only its thin cambium layer and its leaves, flowers and seeds actually alive. Yet the tree is a living organism. Earth behaves like a living organism to the extent that the chemical composition of its rocky crust, oceans and atmosphere has both supported and been influenced by the biological processes of living organisms over several billion years. These self-sustaining, self-regulating processes have kept the Earth's surface temperature, its concentrations of salt in the oceans and oxygen in the atmosphere, and other conditions favorable for life. James Lovelock, who propounded the Gaia hypothesis in 1979, initially rejected humans' cancer-like impacts as a corollary, declaring flatly: "People are not in any way like a tumor" (Lovelock 1988, p. 177). But before long he modified this view, observing: "Humans on the Earth behave in some ways like a pathogenic micro-organism, or like the cells of a tumor or neoplasm" (Lovelock 1991,p. 153). Others have stated the connection more strongly. "If you picture Earth and its inhabitants as a single self-sustaining organism, along the lines of the popular Gaia concept, then we humans might ourselves be seen as pathogenic," Jerold M. Lowenstein, professor of medicine at the University of California, San Francisco, has written. "We are infecting the planet, growing recklessly as cancer cells do, destroying Gaia's other specialized cells (that is, extinguishing other species), and poisoning our air supply....From a Gaian perspective... the main disease to be eliminated is us" (Lowenstein 1992). Dr. Lowenstein isn't the first physician to examine the planet as a patient and find it afflicted with humanoid cancer. Alan Gregg pioneered the diagnosis. As a long-time official of the Rockefeller Foundation, responsible for recommending financial grants to improve public health and medical education, Dr. Gregg traveled widely in the years following World War II and observed the worldwide population boom. By 1954 he had seen enough. In a brief paper delivered at a symposium and subsequently published in Science, Gregg (1955) compared the world to a living organism and the explosion in human numbers to a proliferation of cancer cells. He sketched other parallels between cancer in humans and humans' cancer-like impact on the world. And he expressed hope--unrealized to this day--that "this somewhat bizarre comment on the population problem may point to a new concept of human self-restraint." It has fallen to a physician who is also an epidemiologist to flesh out and fill in Gregg's sketchily drawn analysis. Warren M. Hern wrote his Ph.D. dissertation on how the intrusion of Western civilization has increased birth rates among Peruvian Amazon Indians. He does his bit to keep the US birth rate down by operating an abortion clinic in Boulder, Colorado. Hern (1990) published a major article that laid out in detail, and buttressed with anthropological, ecological and historical evidence, the ways in which the human species constitutes a "malignant eco-tumor." He proposed renaming us Homo esophagus (for "the man who devours the ecosystem"). Illustrations accompanying the article included aerial photographs of US cities juxtaposed with look-alike photos of brain and lung tumors. Dr. Hern has delivered papers on the hypothesis at symposia organized by the Population Association of America, the American Association for the Advancement of Science, and the American Public Health Association. Two papers have subsequently been published (Hern 1993a, 1993b). But in general the scientific community doesn't take his hypothesis seriously, preferring to see it as a mere metaphor or analogy. Indeed, it has evoked hostility in some quarters. When Hern presented the hypothesis at the International Conference on Population and Development in Cairo in 1994, listeners reacted angrily, with one threatening, "Are you ready to die?" A Denver radio talk show host called Dr. Hern an "ecoquack" and a "fellow-in-good-standing of the Sky-Is-Falling School." Such disparagement can be seen as yet another parallel between cancer the scourge in humans and humans as a carcinogenic scourge on the world. For just as Warren Hern encounters indifference, denial and downright hostility to his views, until recently American doctors routinely kept their cancer patients in the dark about the nature of their illness. The aim was to spare patients the shock, fear, anger and depression that the bad news commonly evokes. Families were reluctant to admit that a relative had died of cancer, and newspaper obituaries referred euphemistically to the cause of a death from cancer as "a long illness." In Japan, cancer remains a taboo topic. Public opinion polls indicate that people would rather not know if they have cancer and doctors would rather not tell them. When Emperor Hirohito was dying of cancer of the duodenum, his doctors lied, telling both him and the public that he had "chronic pancreatitis" (Sanger 1989). In the United States, even some environmentally enlightened analysts remain in denial when it comes to the humans-as-a-planetary-cancer hypothesis. Christopher D. Stone, a law professor at the University of Southern California and son of the late leftist journalist I. F. Stone, authored an influential essay on environmental law, Should Trees Have Standing? Toward Legal Rights for Natural Objects. But in his latest book Stone (1993, p.4) casts doubt on the proposition that "the earth has cancer, and the cancer is man." "The interdependency of the earth's parts does not amount to the interdependency of organs within a true organism," he notes. "The earth as a whole, including its life web, is not as fragile...the Gaian relationships are not so finely, so precariously tuned." Even deep ecologists acknowledge that Earth is qualitatively different from a true organism, that its legitimate status as a superecosystem falls short of qualifying it as a superorganism. Frank Forencich, who argued in "Homo Carcinomicus: A Look at Planetary Oncology" (Forencich 1992/93) that "the parallels between neoplastic growth and human population are astonishing," concedes that even a nuclear winter wouldn't completely destroy the living biosphere, much less the inanimate lithosphere, hydrosphere and atmosphere. "We can't kill the host," he says. "Civilization will break up before the biosphere goes" (Forencich 1993). Still another objection is that any generalization about cancer is suspect because cancer is not a single disease, but rather a group of more than 100 diseases that differ as to cause and characteristics. Some cancers--breast cancer, for instance--typically grow rapidly and spread aggressively. Others, such as cancers of the small intestine, usually grow slowly. Prostate cancer often grows so slowly that it causes no problem. "It's completely possible for an organism to have cancer cells for its entire lifetime and suffer no ill effects" (Garrett 1988, p.43). The lack of a perfect correspondence between cancer the disease in humans and humans' cancer-like effects on the Earth invalidates the humans-as-cancer concept for some observers. But Warren Hern insists humans-as-cancer is a hypothesis because it is subject to verification or refutation and because it is useful as a basis for further investigation. Frank Forencich, in contrast, is content to consider the concept a metaphor. "That humans are like cancer is indisputable," he says. "But humans are not cancer itself." Whether as metaphor or hypothesis, the proposition that humans have been acting like malignant cancer cells deserves to be taken seriously. The proposition offers a unifying interpretation of such seemingly unconnected phenomena as the destruction of ecosystems, the decay of inner cities and the globalization of Western commodity culture. It provides a valuable macrocosmic perspective on human impacts, as well as a revealing historic perspective in tracing humans' carcinogenic propensities back to the earliest times. The progenitors of modern humans exhibited one of cancer cells' most significant characteristics, loss of adhesion, one to two million years ago. Because cancer cells are attached more loosely to one another than normal cells are, they separate easily, move randomly and invade tissues beyond those from which they were derived. Our direct ancestors, Homo erectus, demonstrated this trait in migrating out of Africa. Living in small mobile groups, these foragers/scavengers/hunters spread across Asia and Europe. The next hominid species in the evolutionary line, Homo sapiens, extended the dispersal into previously uninhabitable northern forests and tundra. Their successors, anatomically modern Homo sapiens sapiens, have spread to every continent and major ice-free island. With the aid of clothing, shelter, technology and imported supplies, they now occupy forests, wetlands, deserts, tundra and other areas formerly considered too wet, too dry, too cold, or too remote for human habitation. Humans now occupy, or have altered and exploited, two-thirds to nine-tenths (estimates vary) of the planet's land surface. It seems only a matter of time before they take over all the remaining "empty" spaces. Humans' ongoing expropriation of the planet has proceeded apace with the eruption of human numbers; and the eruption of human numbers has features in common with the proliferation of cancer cells. In a healthy body, genetic controls enable a large number of individual cells to live together harmoniously as a single organism. Genetic switches signal normal cells when it is time to divide and multiply, and when it is time to break apart and be absorbed by neighboring cells. When the genetic switches are damaged, as by chemicals, radiation, or viruses, they can get locked in the "on" position. This turns normal cells into malignant cells that divide and multiply in disregard of the health of the entire organism. When humans lived in semi-nomadic bands in harmony with an environment they did not dominate, they limited their numbers so as not to exceed the supply of food they could gather, scavenge, and hunt. Nor did they produce more young than they could carry between seasonal camps. Their contraceptive measures included coitus interruptus (withdrawal), pessaries, and prolonged breastfeeding to depress the hormones that trigger ovulation. When these methods failed, they resorted to abortion and infanticide. Like normal cells in a healthy body, hunter-gatherers seemed to know when to stop growing. However, technological and cultural contaminants upset this delicate natural balance, permitting humans to multiply beyond numbers compatible with the harmonious health of the global ecosystem. The first and still the foremost contaminant was fire. By 400,000 years ago--perhaps even earlier--hunter-gatherers had learned to control and use fire. Thus began the transformation of humans from just another large mammal in competition with other fierce predators into the undisputed overlord of all species, plant and animal. Addiction to combustion has defined human existence ever since, and has escalated into the current orgy of fossil-fuel burning with the potential of overheating Gaia and jeopardizing the existence of all her inhabitants. Fire was generally benign when used by hunter-gatherers to thin dense forests into more open and park-like landscapes supporting more game. But the increase in food supply that more effective hunting and the cooking of tough meat and fibrous vegetable matter made possible swelled hunter-gatherer populations. As humans proliferated and spread out, overhunted and overgathered, large game and suitable wild foods became less abundant. This made hunting and gathering less efficient, leaving horticulture, which previously hadn't been worth the extra effort, as the only viable alternative. Clearing forests to farm began some 10,000 years ago in Asia Minor. About 2000 years later, shifting horticulturists began slashing and burning their way northwestward across Europe. They overwhelmed and pushed aside less numerous hunter-gatherers before giving way in turn to agriculturalists whose plow cultivation of permanent fields permitted more intensive food production and denser populations. Agriculture condemned peasants to a short, harsh life of monotonous toil, an inadequate diet, the constant threat of crop failure and starvation and exposure to virulent contagious diseases. It fostered social stratification and sexual inequality, cruel treatment of animals, despotism and warfare. And it encouraged further cancer-like encroachment on wilderness to feed increased populations and to replace fields and pastures eroded and depleted of soil fertility by overcropping and overgrazing. The elites that came to dominate sedentary agrarian societies caused still more woodland to be cleared and marshland to be drained to maximize production they could expropriate for their own use. This economic surplus, in turn, helped support an increasing concentration of people in river valleys, along seacoasts, and in cities. The massing of humans into cities is all too similar to the way crowded cancer cells harden into tumors. Whereas normal cells in a tissue culture stop reproducing when they come in contact with other cells, cancer cells continue to divide and pile up on top of one another, forming clumps. Normal cells display contact inhibition, growing only to the limits of their defined space and then stopping. Cancer cells never know when to quit. Likewise, human populations grow even under extremely crowded conditions. The very essence of civilization is the concentration of people in cities. As scattered farming villages evolved into towns, and some towns became trading, manufacturing, ceremonial and administrative centers, the city was born. Fed by grain grown in the provinces and served by slaves seized there, the administrative centers of empires grew large; Rome may have reached one million people at its height in 100 C.E. Yet not until industrialization and the extensive exploitation of distant resources after 1800 did cities really begin getting out of hand, and in 1900, still only one in ten people lived in cities. Half will in 2000, with 20 metropolitan areas expected to have 10 million or more people each. The propensity of modern cities to spread out over the countryside--absorbing villages, destroying farm fields, filling in open land, and creating vast new agglomerations--was noted early in this century by the Scottish garden-city planner Patrick Geddes. Geddes (1915) identified half a dozen such "conurbations" in the making in Britain, and he foresaw the approach of a 500-mile megalopolis along the northern Atlantic seaboard in the United States. Geddes compared urban sprawl to an amoeba, but it fell to his American protege Lewis Mumford to liken disorderly, shapeless, uncoordinated urban expansion to a malignant tumor, observing that "the city continues to grow inorganically, indeed cancerously, by a continuous breaking down of old tissues, and an overgrowth of formless new tissue" (Mumford 1961, p. 543). A malignant tumor develops its own blood vessels as it grows. Similarly, cities vascularize with aqueducts, electric power lines, highways, railroads, canals and other conduits. A tumor uses its circulation network to pirate nutrients from the body. Similarly, cities parasitically tap the countryside and beyond to bring in food, fuel, water, and other supplies. However, just as a tumor eventually outgrows its blood supply, causing a part of it, often at the center, to die, inner city neighborhoods and even older suburbs often atrophy. Alan Gregg (1955) noted this parallel 40 years ago, observing "how nearly the slums of our great cities resemble the necrosis of tumors."Return to Top
Humans as Cancer (part 2 of 2) by A. Kent MacDougall Humans are increasingly concentrated along seacoasts. Sixty percent of the world's people now live within 100 kilometers of a seacoast. In Australia, one of the world's most highly urbanized nations, nine of every ten people live along the coast. The boom in international trade, from which coastal areas receive a disproportionate share of the benefits, helps explain the worldwide trend; but the pattern goes back thousands of years and parallels yet another carcinogenic process: metastasis. In metastasis, a tumor sheds cancer cells that then migrate to distant sites of the body and set up secondary growths. The medium for the migration of the cells is the blood and lymphatic systems. In the ancient world of the Mediterranean, another fluid--water--facilitated the migration of people and goods. The Phoenicians, Greeks, Carthagenians and Romans all took advantage of the relative ease of travel and transport by water to establish colonies all around the Mediterranean. At the height of the Roman Empire, no fewer than 500 settlements flourished along the African coast from Morocco to Egypt. Just as secondary tumors in the human body destroy the tissues and organs they invade, colonizers of the ancient Mediterranean devastated the fertile but fragile ecosystems of the coastal regions they colonized. They logged coastal forests for ship timbers and building materials, to provide charcoal to fire bricks and pottery and smelt mineral ores, and to create farm fields and pastures. Overcropping, fires, sheep and goats prevented regeneration. Intense winter rains washed the thin, easily eroded soil down hillsides into coastal plains to smother farm fields, choke the mouths of rivers, create malarial marshes, bury port cities and strand many of them miles from the sea. The slopes, left barren, have not recovered to this day. The voraciousness of secondary tumors as they invade and consume tissues and organs has its counterpart in the orgies of destruction that states and especially empires have engaged in for 5000 years. In many cases, the destruction has exceeded what was in the destroyer's own self-interest. Many invaders routinely obliterated the cities they conquered, massacred their inhabitants, and destroyed their fields and flocks instead of just taking them over. Carpet bombing of cities and the mass slaughter of their civilian noncombatant populations during World War II constitute the modern equivalent. Ancient Romans ransacked their empire for bears, lions, leopards, elephants, rhinos, hippos and other live animals to be tormented and killed in public arenas until there were no more to be found. European invaders of North America and Siberia did in the fur trade from which they so hugely profited by the self-defeating overkill of fur-bearing animals. Human destruction of ecosystems has increased relentlessly since industrialization. The annihilation of 60 million bison on the North American Great Plains was made possible by the intrusion of railroads and the invention of the repeating rifle. The reckless exploitation of whales was speeded by the invention of the explosive harpoon, cannon-winch and engine-driven ship. Enormous nets towed by today's factory trawlers permit oceans to be strip-mined for fish--and any other creature unlucky enough to become ensnared in these curtains of death. Tractors and other modern farm machinery alternately compact and pulverize topsoil, increasing its vulnerability to erosive winds and rains. Chain saws and bulldozers level forests faster than axes and hand saws ever could. Dynamite and drag line excavators permit strip mining on a scale hitherto unimaginable, decapitating mountains, turning landscapes into moon craters, and rendering islands such as phosphate-rich Nauru in the South Pacific all but uninhabitable. Boring holes in the earth to get at minerals, of course, resembles the way cancer bores holes in muscle and bone. As Peter Russell (1983, p.33) has observed, "Technological civilization really does look like a rampant malignant growth blindly devouring its own ancestral host in a selfish act of consumption." Just as a fast-growing tumor steals nutrients from healthy parts of the body to meet its high energy demands, industrial civilization usurps the resources of healthy ecosystems that their natural plant and animal inhabitants depend on for survival. In 1850, humans and their livestock accounted for 5 percent of the total weight of all terrestrial animal life. Today, that portion exceeds 20 percent, and by the year 2030 it could reach 40 percent (Westing 1990, pp. 110-111). "Never before in the history of the earth has a single species been so widely distributed and monopolized such a large fraction of the energetic resources. An ever diminishing remainder of these limited resources is now being divided among millions of other species. The consequences are predictable: contraction of geographic ranges, reduction of population sizes, and increased probability of extinction for most wild species; expansion of ranges and increased populations of the few species that benefit from human activity; and loss of biological diversity at all scales from local to global" (Brown and Maurer 1989). Decline in diversity is common to both cancer and civilization. In both cases, heterogeneity gives way to homogeneity, complexity to simplification. Malignant cells fail to develop into specialized cells of the tissues from which they derive. Instead, "undifferentiated, highly malignant cells tend to resemble one another and fetal tissues more than their adult normal counterpart cells" (Ruddon 1987, p.230). De-differentiation in human societies is at least as old as agriculture and animal husbandry. Farmers have been replacing diverse species of native plants with pure stands of domesticated crops for thousands of years. Instead of the thousands of kinds of plants that pre-agricultural peoples gathered for food, just seven staples--wheat, rice, maize, potatoes, barley, sweet potato and cassava--now supply three-quarters of the caloric content of all the world's food crops. The world's astonishing abundance and variety of wildlife is going fast, with many species soon to be seen only in zoos and game parks, their places taken by cattle, sheep, goats, pigs and other domesticated livestock. Despite their value in providing wildlife habitat, modulating flood waters and filtering out pollutants, more than half of the world's swamps, marshes, bogs, seasonal flood plains and other wetlands have been drained, dredged, filled in, built on or otherwise destroyed. Temperate forests dominated by trees of many species and of all ages are giving way to single species, same-aged conifer plantations supporting far fewer birds and other wildlife. And the tropical forests that harbor more than half of all species on Earth are being mowed down faster than their bewildering biodiversity can be identified, leading some experts to warn that we are causing the greatest mass extinction since the disappearance of the dinosaurs 65 million years ago. The tendency of civilizations to homogenize and impoverish ecosystems is nowhere clearer than in urban areas. Major cities are becoming indistinguishable from one another in appearance and undifferentiated in function. Central business districts so resemble one another that travelers can be forgiven for forgetting whether they are in Boston, Brussels or Bombay. Shanty cities in poor countries look alike, as do suburbs in rich countries. As Lewis Mumford pointed out more than 30 years ago, the archetypal suburban refuge in the United States consists of "a multitude of uniform, unidentifiable houses, lined up inflexibly, at uniform distances, on uniform roads, in a treeless communal waste, inhabited by people of the same class, the same income, the same age group, witnessing the same television performances, eating the same tasteless pre-fabricated foods, from the same freezers, conforming in every outward and inward respect to a common mold, manufactured in the central metropolis. Thus the ultimate effect of the suburban escape in our time is, ironically, a low-grade uniform environment from which escape is impossible" (Mumford 1961, p.486). Globalization of the economy is enclosing the entire world in a single market for machine-made goods that are increasingly standardized whatever their country of origin. Western material values and capitalist commodity culture, led by American television, movies, music, street fashions and fast food, are dominant internationally. Local and regional individuality, along with indigenous cultures, languages and world views, are fading fast. The decline of natural and cultural diversity is as threatening to the planet as undifferentiated cells are to the cancer patient. Whereas a well-differentiated prostate cancer tends to grow slowly, remain localized and cause no symptoms, a poorly differentiated one often spreads aggressively. Similarly, traditional farmers who keep weeds, pests and plant diseases in check by rotating crops, fertilizing naturally, and maintaining the tilth of the soil don't threaten Earth's health the way single-crop plantations relying on pesticides, synthetic fertilizers and heavy machinery do. Unfortunately, monocultural agriculture is becoming the norm on every continent. Hemorrhaging is still another symptom of the carcinogenic process. The first sign of cancer is often spontaneous bleeding from a body orifice, discharge from a nipple, or an oozing sore. Vomiting can warn of a brain tumor or leukemia. Signs that Earth, too, has cancer abound. Cities vomit human sewage and industrial wastes into adjacent waterways. Mines and slag heaps ooze mercury, arsenic, cyanide and sulfuric acid. Wells gush, pipelines leak and tankers spill oil. Farm fields discharge topsoil, fertilizers, pesticides and salts to silt up and poison rivers and estuaries. Cattle feedlots add manure. Most serious of all, deforested, eroded hillsides hemorrhage floods of mud. Fever is another symptom of cancer in both humans and the planet. Cancer patients become fevered because of increased susceptibility to infection caused by a depressed immune system. Chemotherapy and irradiation can also cause fever, as can temperature-elevating substances released by a malignant tumor. Global warming is the planetary counterpart. Waste products released by industry and motor vehicles, deforestation and other feverish human activities pump inordinate quantities of carbon dioxide, nitrous oxide, methane, chlorofluorocarbons and other greenhouse gases into the atmosphere where they trap heat and raise temperatures. Wasting, or cachexia, is still another sign of advanced cancer. A cancer patient becomes fatigued and weak, losing both appetite and weight as the tumor releases toxic hormones and makes metabolic demands on the body. "Many cancer patients die not of cancer itself, but of progressive malnutrition" (Rosenbaum 1988, p.264). The planetary counterpart includes loss of forests, fisheries, biodiversity, soil, groundwater and biomass. It's not in a tumor's self-interest to steal nutrients to the point where the host starves to death, for this kills the tumor as well. Yet tumors commonly continue growing until the victim wastes away. A malignant tumor usually goes undetected until the number of cells in it has doubled at least 30 times from a single cell. The number of humans on Earth has already doubled 32 times, reaching that mark in 1978 when world population passed 4.3 billion. Thirty-seven to 40 doublings, at which point a tumor weighs about one kilogram, are usually fatal (Tannock 1992, pp. 157, 175). Like a smoker who exaggerates the pain of withdrawal and persists because the carcinogenic consequences of his bad habit don't show up for 20 or 30 years, governments generally avoid the painful adjustments needed to prevent social, economic and environmental disasters in the making. "Governments with limited tenure, in the developing as well as in the developed countries, generally respond to immediate political priorities; they tend to defer addressing the longer term issues, preferring instead to provide subsidies, initiate studies, or make piecemeal modifications of policy" (Hillel 1991, p. 273). So it usually takes a crisis, often a catastrophe, before even the most commonsensical action is taken--and then it is often too late to avoid irreversible ecological damage. Is the prognosis for the planet as grim as it is for a patient with advanced cancer? Or will infinitely clever but infrequently wise Homo sapiens alter geocidal behaviors in time to avoid global ruin? Even the most pessimistic doomsayers concede that humans have the capacity to arrest Gaia's deteriorating condition. Cancer cells can't think, but humans can. Cancer cells can't know the full extent of the harm they're doing to the organism of which they are a part, whereas humans have the capacity for planetary awareness. Cancer cells can't consciously modify their behavior to spare their host's life and prolong their own, whereas humans can adjust, adapt, innovate, pull back, change course. Gaia's future, and humans' with it, depends on their doing so. REFERENCES Brown, James H. and Brian A. Maurer 1989. Macroecology: The Division of Food and Space Among Species on Continents.Science 243:1145-1150. Forencich, Frank. 1992/93. Homo Carcinomicus: A Look at Planetary Oncology. Wild Earth 2(4): 72-74. Forencich, Frank. 1993. Personal communication. Garrett, Laurie. 1988. The Biology of Cancer. In Mark Renneker, editor, Understanding Cancer, third edition. Bull Publishing, Palo Alto, CA. Geddes, Patrick 1915. Reprinted in 1968. Cities in Evolution: An Introduction to the Town Planning Movement and to the Study of Civics. Ernest Benn, London. Gregg, Alan. 1955. A Medical Aspect of the Population Problem. Science 121(3,150): 681-682. Hern, Warren M. 1990. Why Are There So Many of Us? Description and Diagnosis of a Planetary Ecopathological Process. Population and Environment 12(1): 9-39. Hern, Warren M. 1993a. Is Human Culture Carcinogenic for Uncontrolled Population Growth and Ecological Destruction? BioScience 43(11): 768-773. Hern, Warren M. 1993b. Has the Human Species Become a Cancer on the Planet? A Theoretical View of Population Growth as a Sign of Pathology. Current World Leaders 36(6): 1089-1124. Hillel, Daniel J. 1991. Out of the Earth: Civilization and the Life of the Soil. Free Press, New York. Lovelock, James. 1988. The Ages of Gaia: A Biography of Our Living Earth. W. W. Norton, New York. Lovelock, James. 1991. Healing Gaia: Practical Medicine for the Planet. Harmony Books, New York. Lowenstein, Jerold M. 1992. Can We Wipe Out Disease? Discover November 1992: 120-125. Mumford, Lewis. 1961. The City in History: Its Origins, Its Transformations, and Its Prospects. Harcourt, Brace & World, New York. Rosenbaum, Ernest. 1988. In Mark Renneker, editor Understanding Cancer, third edition. Bull Publishing, Palo Alto, CA. Ruddon, Raymond W. 1987. Cancer Biology second edition. Oxford University Press, New York. Russell, Peter 1983. The Global Brain J. P. Tarcher, Los Angeles. Sanger, David E. 1989. Tokyo Journal: A Fear of Cancer Means No Telling. New York Times Jan. 20, 1989. Stone, Christopher D. 1993. The Gnat Is Older Than Man: Global Environment and Human Agenda. Princeton University Press, Princeton, N.J. Tannock, Ian F. 1992. In Tannock and Richard P. Hill, editors, The Basic Science of Oncology, second edition. McGraw-Hill, New York. Westing, Arthur H. 1990. In Nicholas Polunin and John H. Burnett, editors, Maintenance of the Biosphere: Proceedings of the Third International Conference on Environmental Future. St. Martin's, New York. ================================================= A. Kent MacDougall (911 Oxford St., Berkeley CA 94707) is professor emeritus of journalism at the University of California, Berkeley. He completed his 25-year newspaper reporting career in 1987 with a 24,000-word series of articles for the Los Angeles Times on deforestation around the world and through the ages. The series won the Forest History Society's John M. Collier Award for Forest History Journalism.Return to Top
sdef! wrote: > Why is all this BULLSHIT being crossposted > posted on the EF! newsgroup? Space colonization is the only long term solution of our environmental, economic and social problems. It will cost a small fraction of the NASA budget. The only obstacle on the path to space colonization is ignorance of environmentalists and space activists. You can learn the basics of space colonization technology from my book: http://www.isd.net/anowicki/ http://www.islandone.org/LEOBiblio/Return to Top
Macarthur Drake wrote: > > Ok this should settle this issue for the last time, everybody.... > Haven't followed the thread, have you? > 1/1/1 First day that we count after BC. This is arbitrary since Christ was > born someother date (like 6BC or something). But still this is the day we > start counting from, period. -- D. mentock@mindspring.com http://www.mindspring.com/~mentock/index.htmReturn to Top
On Thu, 09 Jan 1997 22:13:58 -0700, Mark FrieselReturn to Topwrote: >Guru George wrote: [snip] >What kind of decision it is is a side issue. Anything can be labelled >'slight reshuffling' if your prerequesite for it to be anything else is >that it clear the debt. Perhaps it's my fault in not making clear enough that I am not defending Republican justifications for downsizing, but libertarian ones. Clearing the debt is a tertiary (?) consideration to justice and a sound economy, to me. [snip] > >When you refer to 'the state' I assumed you meant the government - which >is not the same as the general public. I am speaking of the State as the suppposed tool of the general will, when the rule of law is forgotten, and it is conceived that might makes right, and the majority may decide what the law should be. > >You continue: >... >> >> How can the present intstitutions carry out social functions? You >> really seem to think that government action necessarily does more harm >> than good, don't you? > >I reply: > >How? How do they carry out social functions? THey have a >responsibility which they have periodically attempted to meet, to a >greater or lesser degree. A lesser degree when the country has been >hornswoggled like it is now. As to your assertion about what I think, I >have never intended to say or imply what you assert. What have I >written that indicates this? > Ooops! Sorry that was a mistype that passed the proofread: I meant of course that you really seem to think that government action necessarily does more good than harm, don't you? Evidently you do, otherwise my question wouldn't have ruffled your feathers in quite the way it did! [snip] >I tend to be an experimenter rather than a theorist. I do theory for >fun, experiment to obtain information. What you or I prefer isn't germane: I like potatoe you like po-tah-to. The fact remains that any political notion that things could be other than they are presupposes a theory about how things really are; that theory can be criticised counterfactually. And this is an important thing. So cries of "But that's just theory!" are dumb. It was just theory (Austrian economic theory) that communism would result in economic stagnation at a time when every Yahoo was plumping for greater efficiency and productiveness from communism. It was still just theory when everyone was so dumbfounded at the collapse of communism. But then it became a theory that perhaps has some claim to plausibility. > >You continue: > >> The trouble with Leftist >> arguments is that they do not produce, and never have produced, good >> results in counterfactual debate. > >I note: > >I haven't heard a leftist argument in almost twenty years - I'm assuming >I'd recognize one but I can't be sure. Lot's of things people >say< are >leftist... Anything that proposes political control of the economy is towards the Left hand side of the political spectrum, to a greater or lesser degree, yes or no? > >You continue: > >> And Leftist policies have borne >> this out whenever they have been enacted in the real world. This is >> what you can't stand, isn't it, that the Left has been vastly wrong in >> many important ways (not totally wrong about everything, of course). > >I reply: > >This is really wierd. I don't know how I suddenly became a leftist, >whatever you mean by this. I know hot air when I hear it about 80% of >the time. I quote you at random: "I've never read Heinlein, but there is no difference between a properly managed SS fund run by the government and a private fund, except that if the government goes bankrupt the whole nation is in trouble, while if the private firm goes bankrupt, only those expecting to get their social security investment back lose. I prefer the former." Sounds like you're on that side of the political spectrum to me. You think the economy needs political intervention to make it work properly. You seem to take the view that it is possible for government to find a correct solution. That is Leftist in my book: you are intellectual heir to a long tradition of similar thinking, some more extreme, some less, that claims that the economy cannot be left to itself. > >You continue: > >> I say: admit that you were wrong about some stuff, then you may begin >> to be able to understand what libertarians are saying. > >I note: > >Ok, let's try it. I was wrong to think you're going to make sense in >this discussion....AHHHH! NOW I understand what libertarians are >saying. What are you saying, by the way? I was being perhaps too elliptical: I am saying that you share an absolutely crucially definitive central idea with the Left: that the economy requires political control. Your acceptance of this idea makes you part of an intellectual tradition, whether you like it or not. I say that government is incapable of controlling the economy politically, therefore it should get the fuck out of the economy. Therefore it should withdraw its tentacles from every orifice of the body economic, as fast as humanly and morally possible. That is to say, it should 'downsize'. Withdrawing a tentacle here and slipping it in deeper somewhere else is not downsizing. The debt is still growing. > >You continue: > >> >> Yes there is a large contingent that doesn't want to pay for >> semisocialist experiments, sometimes their opposition is principled, >> sometimes selfish. They are quite happy to pay for semifascist >> experiments though, aren't they? > >I reply: > >When you through out semi-fascism and semi-socialism in this context you >completely lose me. I have other fish to fry. Semifascism = Republican policies. Semisocialism = Democratic policies. I am presuming that you are a Democrat. I may have been labouring under a delusion. If so, sorry for wasting your time. > >You continue: > >> Libertarianism says: neither >> semisocialist nor semifascist social engineering ought to be allowed. >> > >I reply: > >Well....tough luck. Ah, so you don't mind s & s s eng., then? Or are you just saying "cope!" like some fool with no mind of their own? > >You say > >> Capital can be generated? How? What are the way/s? >> > >I reply: > >The mint. If you aren't joking, then you are wrong. What comes out of the mint is not capital, it's just paper and metal. Capital is: real objects that satisfy real wants - intelligence, energy, skill, materials, goods. If your paper and metal isn't satisfying real wants, then it isn't capital. If you print more than people need to satisfy real wants, a given portion of it satisfies fewer and fewer wants. That is called inflation, and it is bad for grannies. > >You continue: > >....(re: right-wing propaganda) >> >> And of the Left since the 19th century. > >I note: > >I wasn't around then. I haven't heard as much as a whimper from any >organization that I would classify as the left, much less any >propaganda. The Democratic party is on the Left of the political spectrum: true or false? > >You continue: >> >> BTW, I think you must learn to distinguish libertarianism, which is >> the continuation of pure classical liberalism, from Right >> libertarianism, from the Right. > >I reply: > >I really couldn't care less about libertarianism, however you define it. >I'm not in a position to use them as a political tool, I don't see that >they have much political power, I haven't heard that their programs >would benefit me in any tangible way, and I'm really to busy to go >hunting down the scoop on every noisy political sect that thinks they >have all the answers. Sounds to me like you have no interest in politics at all. Nice of you to admit you're only in it for what you can get out of it. You also sound pompous and arrogant. > >You continue: > >.... > >> Glad you admit that you don't get it! There's hope for you yet. :-) >> > >I reply: > >I also don't get why downsizing has occurred but so many seem to want to >deny it, why it has been detrimental and promises to be worse yet so >many seem to support it, why the Republicans can rob the public blind >yet so many of their victims want to excuse it. I haven't noticed >you< >saying that you don't get it. Does this mean there's no hope for you? >Too bad. 8^( > See my first comment above, if you can be bothered. My final comment (for this is getting boring) is that you seem to me to be far more interested in looking good, in saying something that appears to be cool and fashionable, than you are in intellectual debate. Fair enough. I'm not interested. - Guru George ****************************************************************** "Do what thou wilt shall be the whole of the Law." - ALi40 "So with thy all: thou hast no right but to do thy will." - ALi42 "Do that and no other shall say nay." - ALi43 ******************************************************************
I have been doing some reading on Black Bears. No books say that Black Bears delibertly hurt someone but alot of people that I know fear them. Why? They are not human killers!!!!!!!!!!!!! They all say that Black Bears attack people for no good darn reason. I know they will attack if someone messes with mama bears cubs and if you go right up to them so dont get me wrong. I would just like to hear other's opinions about Black Bears.Return to Top
Interesting essay, Andrew! I really like the humans-as-cancer meta- phor -- please see my response to you in the "Space Junk" thread. But meta- phors can be carried to far. When you want to make policy decisions, it is critical to see things for what they *are*, not to view them metaphorically. Furthermore, I'm afraid that this essay doesn't support your as- sertion that colonizing space is the only solution to human problems. In article <32D9461E.1CF8@isd.net>, Andrew NowickiReturn to Topwrote: >Humans as Cancer (part 2 of 2) > by A. Kent MacDougall [big snip] >Is the prognosis for the planet as grim as it is >for a patient with advanced cancer? Or will >infinitely clever but infrequently wise Homo >sapiens alter geocidal behaviors in time to >avoid global ruin? Even the most pessimistic >doomsayers concede that humans have the capacity >to arrest Gaia's deteriorating condition. Cancer >cells can't think, but humans can. Cancer cells >can't know the full extent of the harm they're >doing to the organism of which they are a part, >whereas humans have the capacity for planetary >awareness. Cancer cells can't consciously modify >their behavior to spare their host's life and >prolong their own, whereas humans can adjust, >adapt, innovate, pull back, change course. > > >Gaia's future, and humans' with it, depends on >their doing so. My feelings exactly. Now let's shut up and figure out how to do it. -- Unique ID : Ladasky, John Joseph Jr. Title : BA Biochemistry, U.C. Berkeley, 1989 (Ph.D. perhaps 1998???) Location : Stanford University, Dept. of Structural Biology, Fairchild D-105 Keywords : immunology, music, running, Green
bwynnReturn to Topwrote: >The ozone depletion is causing increaed skin cancer - not global >warming. There is no evidence to support your first statement, and the second is disputed. If you were to change the second statement to "not significant global warming", then I would tend to agree with you. You have to remember that the Earth is spherical, and so, all other factors aside, the average UV intensity on the Earth's surface is highest at the Equator, and lowest at the Poles. This effect is evened out by the fact that most ozone generation takes place in tropical latitudes in Summer. This leads to less UV reaching the Earth's surface there. Balancing the equation a bit. Further balancing occurs through ozone depletion which occurs at the Poles. When this ozone depleted air moves from the poles, it dilutes the ozone in the air at lower latitudes (ie., closer to the equator), and this results in an increased amount of UV reaching the ground at middle latitudes such as Tasmania and further north. Once again there is a partial balancing out. So, the curvature of the Earth means that there is a greater concentration of UV hitting the equator than at the poles. At the same time, ozone production in the tropics decreases the amount of UV reaching the ground, and ozone depletion towards the poles increases the amount of UV there, and so there is a partial balancing out. The question is, how much of a balancing out is there. The ozone `hole' over Antarctica starts to break up in Spring, and drift north in a set of smaller `pieces'. In the 80s, part of the hole moved over Buenos Aries. Despite the fact that the hole had almost no ozone in it, the measured UV intensity at the ground, was less than that of Rio de Janerio. The bottom line of this is that if the incidence of skin cancer is directly related to UV levels, then if you want to avoid skin cancer, you are better off staying in Tasmania than in North Queensland, even if an ozone depleted hole sat permanently over Tasmania. There are two major problems with linking the incidence of skin cancer to stratospheric ozone depletion, not the least of which is that we don't actually know what causes skin cancer. It is well known that excessive exposure to UV B causes sunburn, but whether or not this causes skin cancer is another thing altogether. One large problem is the fact that skin cancers generally take 20 or 30 years to develop. This makes it difficult to determine what precisely has caused them. A theory which seems to be gaining general acceptance, is the idea that it is not the continual exposure to sunlight which causes skin cancer, but it is the severe sunburn on a small number of occasions in childhood, which seems to be the trigger. Later, excessive exposure may increase the liklihood of skin cancers developing. Furthermore, I don't think it is clear that UV B is actually the culprit. From memory, there seems to be evidence that UV A has been implicated as the causative factor for these skin cancers. UV A levels are generally directly related to UV B levels, so that the more there is of one, the more there is of the other. This is not the case with ozone depletion, for ozone depletion simply lets more UV B through the atmosphere, and (from memory) has very little effect on UV A levels, for, if I remember correctly, ozone does not block UV A. So, if my memory serves me correctly, and UV A is the culprit, then ozone depletion will not lead to an increase in the incidence of skin cancer. The situation is likely to be a bit more complex than that. The problem is taht with the length of time it takes these cancers to develop, and the fact that the hole was only discovered about 20 years ago, we do not have enough data to be able to draw a definite relationship between the incidence of skin cancer, and stratospheric ozone levels. In my opinion, an uninformed and sensationalist media has been responsible for generating what I would almost describe as paranoia, and an increase in the incidence of Doomsday prophets, with respect to the ozone layer. Irresponsible scaremongering would be one way of putting it. This is not to say that there is not a problem, it is saying that the problem is not nearly as great as many people seem to believe. Nor am I in any way suggesting that people ignore the "Sun Smart" campaigns, for they would be fools not to do so. Australia has the highest per capita rate of skin cancer in the world. While I do not believe that there is a real problem with ozone depletion, I must also stress that I also believe that if we had not acted quickly on the issue, then we would have a very big problem on our hands. So, the bottom line is that it is far too early to link skin cancer incidence to stratospheric ozone levels, and I suspect that many other factors may mask any such relationship, if it exists. At the same time, we may be looking at the effects of ozone depletion in terms of the global reduction in frog and related amphibia populations. No satisfactory explanation has been given for this, it is quite conceivable that increased UV levels place further stress on species already stressed by other factors. >The biggest environmental disaster in the world today is overpopulation. I thought it was politicians, but I will give you the benefit of the doubt. :-) Ian
[Posted to sci.energy] Dennis NelsonReturn to Topwrote: >Reactors which are fueled with mixed oxide fuels from the start have a different >neutron dynamic from ordinary LWRs. I expect therefore that different fuel mixtures >would require different reactor designs. CANDUs can burm MOX with no problem. Patrick ---------------------------------------------------------------------- | Patrick Reid | e-mail: pjreid@nbnet.nb.ca | | ALARA Research, Incorporated | Voice: (506) 674-9099 | | Saint John, NB, Canada | Fax: (506) 674-9197 | |--------------------------------------------------------------------| | - - - - - Opinions expressed here are mine and mine alone: - - - - | | - - - - - - - - - -don't blame them on anyone else - - - - - - - - | ----------------------------------------------------------------------
I need information and suggestions for environmentally benign disposal of oil filters and used motor oil. Anyone know of a commercial facility that recycles oil filters? RHSReturn to Top
Dennis Nelson (innrcrcl@erols.com) wrote: : : Reactors which are fueled with mixed oxide fuels from the start have a : different neutron dynamic from ordinary LWRs. I expect therefore that : different fuel mixtures would require different reactor designs. As usual you're wrong. : Sorry, I always get those two mixed up. I know that they are both heavily : contaminated with stray radionuclides. At least the Clinch River site isn't : just 60 miles upstream from our nation's capitol. : : I believe that there was an IFBR in Clinch river however, which never worked : as promised. Instead of "believeing", why not attempt to verify your assumptions before proclaiming yourself an idiot? Perhaps it never worked as promised because it wasw never finished. : Sorry again. I'm really going to have to get my facts straight with : you guys. I always did get those two mixed up, thanks for the : correction. We're not as easy to fool as the other people in the "home" with you are we? : I also can never remember whether it was TMI-1 or TMI-2 which melted : down and triggered the release of several hundred thousand gallons of : emergency cooling water. This emergency cooling water, which had been : in intimate contact with the melted core, was then pumped into the : Susquehanna River, demonstrating a real lack of environmental concern. Please elaborate on all dicharges that exceeded the license limits. I'm sure your also aware that some common items, such as bourbon, could not be released from operating commercial plants because they are "too radioactive". :> Dennis "Don't Confuse Me With the Facts" Nelson : : As if tootie could figure out what the facts are. I have heard it said that : one man's trash is another man's treasure. Perhaps facts follow this same : paradigm. Well Dennis, you make many factual errors in your posts, refuse to acknowledge most of them (I was quite suprised to see you admit fault) and then resort to name calling when you are proven wrong, you're quite an example. tootieReturn to Top
In article <32D94719.76E8@isd.net>, Andrew NowickiReturn to Topwrote: >sdef! wrote: >> Why is all this BULLSHIT being crossposted >> posted on the EF! newsgroup? > >Space colonization is the only long term >solution of our environmental, economic >and social problems. It will cost a small >fraction of the NASA budget. The only obstacle >on the path to space colonization is ignorance >of environmentalists and space activists. You >can learn the basics of space colonization >technology from my book: >http://www.isd.net/anowicki/ >http://www.islandone.org/LEOBiblio/ Please see my followup to this absurdity in the "Space Junk" thread on alt.politics.greens ONLY. Followups set to an appropriate newsgroup. -- Unique ID : Ladasky, John Joseph Jr. Title : BA Biochemistry, U.C. Berkeley, 1989 (Ph.D. perhaps 1998???) Location : Stanford University, Dept. of Structural Biology, Fairchild D-105 Keywords : immunology, music, running, Green