"Pennsylvania State University has found no evidence of research misconduct on the part of  Michael Mann, the prominent climatologist who is a leader in efforts to chart Earth’s past temperature patterns and has been a  longstanding target of groups and individuals fighting restrictions on greenhouse gases. The report released today examined the last of four focused questions about his work methods. A panel cleared him of wrongdoing on three questions in February."

Andrew C. Revkin reports on Dot Earth for the New York Times July 1, 2010. [2]

SEE ALSO:

Video Interview with Michael Mann (Climate Science Watch) [3]

"Climategate Scientist Cleared in Inquiry, Again" (The Daily Climate) [4]

"Climate Scientist Cleared of Altering Data" (New York Times)
[5]
"Penn State Clears Mann in Climate-Gate Probe" (Post Carbon)
[6]
"Climategate Scientist Michael E. Mann Exonerated" (Huffington Post) [7]