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At the risk of establishing some form of consensus (and without reading the rest of the thread, lol) I would also say that we are in a period of global warming. From what I have read, we are at the end of an ice-age, and therefore warming would make sense (remember the world is far cooler than it was during the dinosaur period, for e.g). I suspect we are artificially hastening the warming, but I also suspect that all the predictions are likely to be as accurate as your average weather prediction... not very.
There simply isnt enough data, nor has it been going on for long enough, to accurately predict the effects. We cannot use even a decade of weather patterns as proof positive.
However, reducing CO2 (along with the other pollutants) makes sense on other environmental levels; on economic ones (i.e, fossil fuels are going to run out) and on geopolitical ones.
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Nemo Me Impune Lacessit - Scottish Motto
"They that approve a private opinion, call it opinion; but they that dislike it, heresy; and yet heresy signifies no more than private opinion” Thomas Hobbes - Leviathan
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