This video does a wonderful job of putting the effects of global warming side-by-side. Pictures of the impact of this challenge show a clear story.

“Lost forest cover, decaying vegetation and overheated soils are expected to release as much as 77 gigatonnes of carbon into the atmosphere. This will raise global temperatures significantly more than the UN’s Intergovernmental Panel on Climate Change predicts to date…The battle to get greenhouse gas levels under control ought to be treated as global priority number one.” Tam Dalyell MP, New Scientist, 7 February 2003