The U.S. Geological Survey's Repeat Photography Project shows quite clearly the effects of global warming on glaciers in America.
Click the link below to view these photos.....
http://nrmsc.usgs.gov/files/norock/repeatphoto/Pairs/RepeatPhoto_pairs_Fullset_compr.pdf
Isn't that eco-terrorist propaganda designed so they can ...um, you know... well, I don't actually know what it would do except cause alarm in rational people, maybe get some of us to pay attention more to the planet.
We've only known about this sort of thing for 30 yrs - let's not rush to judgement.