Interesting interview transcript on Alternet; includes Bill McKibben of http://www.stepitup2007.org saying:
to call it “global warming” is correct, but almost a misnomer. What we’re really doing is adding immense amounts of energy to a system, and that energy is expressing itself in all kinds of ways: more evaporation, more precipitation, higher wind speeds, rapid melt of ice across the Arctic and across every glacial system that we know about, on and on and on.
It is — you know, we used to think that we were still a decade or two away from the real emergency. That’s what we would have said twenty years ago, when I wrote The End of Nature. Now, we understand, the modeling makes clear, that the planet was more finely balanced than we’ve understood. What we’ve done so far has been enough to throw every physical system on earth out of kilter.
What we’re fighting for now is not to prevent global warming. There is going to be some global warming; there already is. What we’re fighting for now is to keep that miserable and difficult century of global warming from turning into an absolute catastrophe that rewrites the geology and biology of this planet for eons to come.