Climate Scientist, Heated Up Over Satirical Video, Threatens Lawsuit

Michael Mann, one of the central figures in the recent climate-data scandal, is best known for his "hockey stick graph," which was the key visual aid in explaining how the world is warming at an alarming rate and in connecting the rise to the increase in use of carbon fuels in this century. E-mails stolen from a university in England were released online, revealing exchanges between climatologists and a reference to a "trick" that Mann had used to get the graph to portray what global warming scientists wanted to see. 

The parody video, titled "Hide the Decline," had more than 500,000 viewers on YouTube and received national attention when Rush Limbaugh played it on his radio show. It features a cat with a guitar, a talking tree, and a dancing figure sporting the image of Professor Mann. It's the use of his image that Mann is complaining about, arguing that the video supports "efforts to sell various products and merchandise."

"The guy is crazy to threaten legal action," said Jeff Davis, the President of No Cap and Trade, a large organization that includes the group Mann is threatening to sue, Minnesotans for Global Warming. "A lawsuit would give us full discovery -- and there's a lot to look at in his work."

The revelations of the leaked e-mails brought into question the methodology used to prove the Earth is getting hotter, and the phrase "hide the decline" became a catchphrase for questioning a human role in global warming.

Mann faced investigations both by Penn State and in England. While both found his work acceptable, critics have nevertheless charged that the probes were superficial and have prevented a closer analysis of the science upon which his view of global warming is based.

In his letter Mann threatened legal action, claiming the spoof video "illegally used his image and defamed him."