In recent years, every major scientific body in the world has produced reports confirming the peril of climate change. All 15 of the warmest years on record have come in the last two decades. And Earth's major natural systems are all showing undeniable signs of rapid flux: melting Arctic and glacial ice, rapidly acidifying seawater and so on. Yet because of a recent onslaught of attacks on the science of climate change, fewer Americans now believe humans are warming the planet than did just a few years ago.
http://www.latimes.com/news/science/environment/la-oe-mckibben25-2010feb25,0,2429568.story