from 2005 to 2008, a single source, the Kochs, poured almost $25 million into dozens of different organizations fighting climate reform. The sum was staggering. His research showed that Charles and David had outspent what was then the world’s largest public oil company, ExxonMobil, by a factor of three. In a 2010 report, Greenpeace crowned Koch Industries, a company few had ever heard of at the time, the “kingpin of climate science denial.”