It's odd that this particular issue seems to fall along party lines: Dems and Indy's recognize it, and Cons deny it. Why do you think that is? It would seem to me that anything that threatens the actual effing planet is everyone's concern. If the evidence bears out, then we would all be in trouble. If it doesn't, it would seem that everyone would want to work together to make sure. I don't get the point of looking at the considerable evidence and saying, "Nope. Not happening."