For those in climate change denial

There seems to still be a substantial number of people who don't believe the earth's climate has been changing dramatically.  I suppose that includes the 40% plus of Americans who also believe the earth is only some 6000 years old, and perhaps a few of the Flat-Earth Society members as well.

It is certainly true that some of the climate change scientists have muddied the waters in the past year by intemperate emails, but in fact the evidence for dramatic climate change is pretty convincing to anyone who hasn't an ideological need to deny it.  NASA has a pretty good one-page summary of the evidence on the NASA Climate Change :Evidence site.