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.

Rumour is that shock jock Glenn Beck will host the same old typical handful of global warming deniers on his CNN special tonight. They will no doubt spout the same old arguments like: "I remember when global cooling was all anyone would talk about."

In what is becoming a perfect echo chamber, we see the same small group of mainly industry-funded "experts," running from one ear to the next telling us that global warming is a hoax, and there is nothing to fear.

What this continuous recycling of the same 5 or 6 global warming deniers highlights more than anything is how very few there are left.

Here is the background on 3 of the known fossil fuel friendlies that will appear as "experts" on Beck's show. They are Tim Ball, Pat Michaels and CEI's Chris Horner.

The most outspoken climate-change denying U.S. think tank - recently cut off by favourite funder Exxon Mobil - has coincidentally seen the light on climate science and now acknowledges the obvious.

Check out this excellent overview, reported in The Australian, but written by The New Republic's Bradford Plumer.

The Competitive Enterprise Institute, who not even the likes of ExxonMobil want to be associated with anymore, has issued a media advisory today offering up their in-house staff as global warming "experts" available for comment on the upcoming release by the Intergovernmental Panel on Climate Change (IPCC).

With the IPCC report coming from scientists, you would think the CEI would be offering up scientists as global warming "experts.

Think again.

Here's some background information on each of their so-called "experts."