September 12, 2011 -
The N.C.
September 11, 2011 -
By Anthony DePalma, special to ProPublica
September 9, 2011 -
By Earl Ofari Hutchinson,
September 8, 2011 -
Twice a year, billionaires Charles and David Koch --
September 7, 2011 -
Roy Spencer doesn't disclose his leadership roles in climate skeptic groups financed by Exxon and other key players in what's been dubbed the "climate denial machine": the network of companies, think tanks and foundations that have sought to deny and downplay the scientific consensus that global warming is real and caused in large part by human activity.