The National Center for Public Policy Research, a group well known to DeSmogBlog, issued a press release yesterday challenging Greenpeace to disclose all of its funding sources over $50,000.

The release states: Today The National Center for Public Policy Research is challenging Greenpeace and its affiliates to disclose the sources and amounts of its 2006 donations exceeding $50,000. If it does so, The National Center for Public Policy Research will do the same."A quick spin around the Greenpeace site and you'll find their annual reports dating back to 2002. Contained in those reports is full disclosure of Greenpeace donors.

Rep. Brad Miller (D-North Carolina), chair of the House Subcommittee on Science and Technology, fired off a strong letter (pdf) to ExxonMobil demanding that the oil giant hand over documents relating to all grants awarded so far in 2007 by recipient

Could this be the first step in a Congressional hearing similar to Rep. Henry Waxman's famous Big Tobacco Hearings?

Sure looks that way.

Despite ExxonMobil's denials, a report released today by Greenpeace's ExxonSecrets.org project, reveals that the largest oil company in the world continues to spend millions on a stealth public relations campaign aimed at discrediting global warming science.

According to the report, Exxon provided $2.1 million in 2006 to 41 "think" tanks and associations that actively sow doubt about the realities of climate change. Since 1998, ExxonMobil has spent a staggering $23 million on this climate disinformation.