Not much worse than snow over ice. Well, one thing is worse...all those drivers getting their update on a winter driving lesson---drive fast, brake hard, slide slide off the road, blame the brakes.
The atmospheric scientist I listen to, Dr. Cliff Mass at the University of Washington, says:
My bottom line message is that anthropogenic global warming (AGW) IS a major problem, but one that has received considerable hype from both "sides." One side is convinced, for good reason, that AGW is a real problem, but is not afraid to dramatize the threat a bit or to see the "other side" in threatening terms. The other believes the whole business is some kind of false science inspired by some left wing conspiracy. Or they repeat ideas that don't hold water under examination: e.g., that since the earth has had climate cycles before, we can't pin changes on greenhouse gases. Or that since we can't forecast weather well next week, how can we predict climate change fifty years from now? Or that there can't be global warming caused by man because the earth's temperatures haven't changed much during the last 5-10 years.
It has been clear for a long time that no nation is willing to hurt its economic development in the short term for ameliorating a theoretical problem mainly in the future. Kyoto was pretty much of a joke in terms of doing anything serious and the agreement of last week (Copehagen) lacks concrete measures. Even people who are emotionally committed to doing something about AGW are unwilling to change their personal lives in a meaningful way. How many global warming activists are jetting across the world for seemingly endless meetings? I know some with vacation homes--the ultimate waste of resources. If such committed people won't sacrifice and are not a little hypocritical, how can we expect others to?
Lets be honest with ourselves...there is only a few ways left to proceed now:
1. Put large amount of resources into technological improvements in energy efficiency, new energy sources, removal of Co2 from the atmosphere, etc. Make it cost effective and NO SACRIFICE to reduce fossil fuel emission. Green industry can be a boon for everyone. The U.S. is very rich in solar and wind energy...we are just scratching the surface. And we and much of the world waste huge amounts of energy. Obama should make this a priority---a Manhattan Project like effort.
2. Take serious steps on adaption--making the changes necessary to reduce the impacts of global warming and to take advantage of the good things that go with it. And there will be good things. The Canadians and Russians are going see vast areas opening up to agriculture. Washington State wines will get even better (sorry Californians).