Michael Mann, author of the “Dirtiest Little Secret” book and other controversial books, is taking a leave of absence from his post as director of the Earth System Science Center at Penn State University.
The decision came after Mann resigned as director last week amid controversy over his views on climate change, including his controversial book, “The Hockey Stick and the Climate Wars,” which argued that the hockey stick, a global temperature trend, is not a statistically significant trend and that the consensus of scientists on the topic is the consensus is that it is not.
The climate scientist said in a statement Thursday that he is withdrawing his resignation.
“I am deeply sorry that I have made this decision in light of what I have learned about my views on human-caused climate change,” Mann said.
“It is my belief that I should not be involved in a political campaign, and I will continue to speak out for the truth in my research and as a scientist.”
The resignation comes just weeks after former president Bill Clinton was forced to resign after the revelation that he had given tens of thousands of dollars to climate denialist groups.
Mann has been an outspoken critic of President Donald Trump, saying he would be “more supportive of climate science” if he were still president.