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Geronimo
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st cloud USA
Jan 1970 time: 05:24
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quote: Originally posted by Oerdin
You see now you're using logic. That's no good since they love to run around in fits of hysteria. They'd love to forget about the hysterical claims about the Ozone layer being gone by 2000 or the Amazon rain forest being gone in 1995. There are always these dire prodictions about the end of the world that never come true and which can be averted by very small changes. Over reacting and having tantrums usually does more harm then good. |
To be fair quite a lot was done to head those disasters off. CFC emissions have dropped drastically and the brazilian govenrment has dramatically altered it's policies toward forest preservation since those predictions were made. Global warming could still bite us all in the arse and we shouldn't be prepared to write it off as another chicken little hysterical fit just because the models we use to predict the net effects are inadequate. Rather we need to spend big bucks to learn now what the resulting climate will look like so we can decide what price we want to pay to alter that outcome and to what degree.
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Geronimo
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st cloud USA
Jan 1970 time: 05:24
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quote: Originally posted by Oerdin
OK, I'm a geologist and I'm going to tell you that you are full of crap. Atmospheric CO2 changes widely depending upon organic activity and, most importantly, volcanism. When Krakatoa went off temperatures world wide went down 5-10 degrees and CO2 went up 10%-15%.
That's how insignificant we are in the big picture. One volcano can put out more then all humans combined. A portion of this warming is likely natural and a portion is likely man made (mostly from deforestation not industry). Lowering emissions will help some what if you can do it globally (not bloody likely) instead if you really want to do the most good instead you should plant a tree. |
I see this a lot and everytime I have checked it out it has turned out that volcanos - even during large eruptions - emit significantly less CO2 than modern net CO2 emissions from burning of fossil fuels. Are you sure you got your information about krakatoa from a reputable source and if so can you direct me to the same source?
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Geronimo
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st cloud USA
Jan 1970 time: 05:24
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quote: Originally posted by Oerdin
Sure it was. Humans have had an impact both in industry but primarially through deforestation. The best thing we can do is go after cleaner energy when ever possible and planet a trees every where we can to replace the vast forests we've cut down. |
We should also build more long term wooden structures since a forest can only remove so much CO2 before forest turn over caused by decay of old wood causes the forest to no longer contribute to a net removal of CO2. This progress can be especially undone if such a forest is allowed to eventually undergo a large forest fire.
The only way to make CO2 removal from trees semi permanent is to build enduring wooden stuff out of the trees and then keep planting new ones to repeat the process. Trees can't make CO2 magically disappear. All they do is temporarily sequester it in the form of carbon locked up in the wood and other plant tissues.
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Asmodean
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Aarhus, Denmark
Aug 1999 time: 06:24
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quote: Originally posted by Oerdin
No, I'm not. I, and people like me, have offered a valid alternative with a graduated response instead of a knee jerk go for broke response Kyoto calls for. This is all about making our response being proportional to the threat. We have so little in the way of reliable data that it is only prodent to have a graduated response and adjust our tactics as more data becomes available. |
Then my point wasn't directed at you. You at least seem to acknowledge the threat, if not just ready to accept the consequences.
Look...I am no scientist, but many of those that are, are warning against this. You, Oerdin, may disagree with their findings, but grant me this: There are so many unknowns in this, that it at least warrants close scrutiny. Many (especially US) politicians seem to write the whole thing of to ramblings from eco-nuts and tree-huggers. That!! is the mistake here. Kyoto aside, what I want is for the problem to be taken seriously. At present, that is not happening.
Asmodean
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Geronimo
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st cloud USA
Jan 1970 time: 05:24
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All the scientists definitively say if you read carefully is that:
1. atmospheric CO2 levels have trended higher in direct relation to anthropic CO2 emissions.
2. Temperatures have been trending higher at a rate consistent to predictions based upon the expected greenhouse effect from anthropic emissions.
That's it really. The predictions of the results of this temperature increase are far more uncertain.
scientists agree that global warming appears to be occuring as a result of human activity but they do not agree on what the outcome will look like.
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