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- Path: sparky!uunet!cs.utexas.edu!execu!mike
- From: mike@execu.execu.com (Mike McCants)
- Newsgroups: talk.environment
- Subject: Re: CO2 (was Re: ages Environmental Show Trials)
- Message-ID: <3644@execu.execu.com>
- Date: 26 Aug 92 23:09:55 GMT
- References: <1992Aug20.125508.12570@ornl.gov> <1992Aug25.185435.3025@ke4zv.uucp> <l9nhjuINNmol@utkcs2.cs.utk.edu>
- Distribution: usa
- Organization: Comshare, Inc. Austin Development Center
- Lines: 61
-
- In article <l9nhjuINNmol@utkcs2.cs.utk.edu> de5@ORNL.GOV (Dave Sill) writes:
- >Nonsense. The potential for catastrophe is greatest if we perturb the carbon
- >cycle. Business as usual isn't, in this respect, safe.
-
- We have already perturbed the carbon cycle. We continue to perturb the
- carbon cycle. Do you want to stop perturbing the carbon cycle? Do you
- want to reduce US CO2 emissions by 90%? Next year? 2002? 2092?
-
- >I don't care whose models are used. We can't pump CO2 into the atmosphere
- >forever without negative impact.
-
- That's an interesting hypothesis. How long is "forever"? Do you want
- to claim that another 100 years at the current rate would be catastrophic?
- How can you convince us of this?
-
- >I think you're wrong. I don't think the risk of that is very high, but I do
- >think its *possible* that a sudden climate change could introduce unexpected
- >catastrophic results.
-
- Is 100 years "sudden"? Do you expect the Antarctic ice shelf to fall into
- the ocean - raising its level 5 feet? What "unexpected" catastrophic
- results are you expecting?
-
- Will "the big one" hit California within 100 years?
-
- Will another asteroid clobber us before "forever" comes?
-
- Will a hostile power throw a few H bombs at us within the next 100 years?
-
- > And I certainly think such unexpected catastrophies are
- >more likely when humans meddle with things than when they don't.
-
- Hurricanes and earthquakes and asteroids are "expected" catastrophies -
- so they don't count? Which is more expensive: a $10 billion hurricane
- or $10 billion "wasted" slowing the CO2 rise by 6 months?
-
- Was Malthus right or wrong? Is there a coming catastrophe "expected" by
- "Malthusians" and unexpected by the rest of us?
-
- > My basis for
- >this belief comes from the fact that, in the millions of years prior to
- >substantial environmental impact from unnatural causes, such catastrophes didn't
- >happen.
-
- Only "expected" catastrophies happened? The dinosaurs were going to
- die because their plants would die due to lack of CO2 - but the asteroid
- got them first? The CO2 level has fluctuated a lot. The Earth's
- temperature has fluctuated a lot. What catastrophes didn't happen?
-
- > Plus, throughout my life I've seen numerous cases of human blundering
- >causing unexpected results in smaller, much better understood systems.
-
- This "example" is not very specific. I'm willing to admit that human
- blunders have caused unpleasant results. The discovery of penicillin
- for example. [Oops - a little slip there.] Gunpowder? Nuclear fission?
- Fusion? Thinking the world was smaller than it was? How is there
- a relation between the "cases of human blundering" that you seem to
- be referring to and the current global economy that is largely based
- on fossil fuels? Is the use of fossil fuels a human blunder that
- needs to be corrected no matter what the cost?
-
-