After reposting a comment calling slain conservative Charlie Kirk the “head of Trump’s Hitler youth,” media-heralded climate alarmist Dr. Michael Mann has resigned from his position at the University of Pennsylvania.
In a statement announcing his resignation Monday, Mann said his activism conflicts with the university’s “established institutional neutrality policy.”
On September 14, The Daily Pennsylvanian reported on the widespread backlash to Mann’s Hitler/Kirk comparison:
“Penn Earth and Environmental Science professor Michael Mann faced criticism for social media activity — including reposts and a since-deleted post of his own — regarding the assassination of conservative media personality and Turning Point USA founder Charlie Kirk.
“Mann's comments on social media — including reposting a message that called Kirk ‘the head of Trump's Hitler Youth’ — faced backlash from prominent conservative pundits and social media commentators, including Sen. Dave McCormick (R-Pa.). The posts have since been deleted.”
“This is despicable behavior,” Senator Dave McCormick (R-Pa.) wrote in a social media post condemning Mann’s smear of Kirk:
“This dangerous rhetoric cannot and will not be tolerated. I unequivocally condemn this behavior and demand UPenn to take immediate, decisive action.”
The government settlement with UPenn needs to be reopened. Full audit of violent/radical left faculty and also the restoration of the Reverend Whitefield statue to the quad must be added.
— Ezra A. Cohen (@EzraACohen) September 12, 2025
Mann, who had been Penn’s Vice Provost for Climate Science, Policy, and Action for 11 months before resigning this week, has long been a controversial figure stoking apocalyptic climate hysteria, according to Watts Up With That, which bills itself “the world’s most viewed website on climate”:
“Mann’s entire career has been one long exercise in not practicing neutrality. From the infamous ‘hockey stick’ graph that put him on the map, to his endless courtroom brawls against critics, Mann has thrived on confrontation.”
…
“The Hockey Stick Graph (1998): Mann’s claim to fame, a reconstruction of past climate temperatures that conveniently erased the Medieval Warm Period. Critics shredded the statistical methods, but Mann doubled down and cast all skepticism as denial.”
