For a project i'm currently involved in (New Values Tradegrounds), i've been following the ongoing debate over climate change fairly closely. It's quite shocking to find out that some of the 'evidence' against climate change is being paid for by Exxon Mobil, who sum up their strategy in an internal memo like this:
"Victory will be achieved when uncertainties in climate science become part of the conventional wisdom" for "average citizens" and "the media."
(Quoted in article by Environmentaldefense.org.)
Meanwhile, the evidence for climate change is piling up high. Perhaps the most convincing proof is a set of photographs from Gary Braasch (www.worldviewofglobalwarming.org), published by the BBC, that are quite hard to argue with...