A Greenpeace investigation has identified a little-known, privately owned US oil company as the paymaster of global warming sceptics in the US and Europe.
The environmental campaign group accuses Kansas-based Koch Industries, which owns refineries and operates oil pipelines, of funding 35 conservative and libertarian groups, as well as more than 20 congressmen and senators. Between them, Greenpeace says, these groups and individuals have spread misinformation about climate science and led a sustained assault on climate scientists and green alternatives to fossil fuels.
Greenpeace says that Koch Industries donated nearly $48m (£31.8m) to climate opposition groups between 1997-2008. From 2005-2008, it donated $25m to groups opposed to climate change, nearly three times as much as higher-profile funders that time such as oil company ExxonMobil. Koch also spent $5.7m on political campaigns and $37m on direct lobbying to support fossil fuels.