ExxonMobil (Esso) has for years been using its vast wealth to run a cynical global campaign of funding junk science to spread disinformation and deliberately muddy the waters on our understanding of climate change, and using its clout with the Bush administration to block recognition of climate change and global action to reduce emissions.
http://www.indymedia.org.uk/en/2007/04/367221.html
http://www.indymedia.org.uk/en/2007/04/367221.html