Is man-made global warming Mann-made?
Only Human Jonathan Lange | Sept. 2, 2019 Dr. Michael E. Mann is regularly promoted as the “world-leading climate change scientist.” He is a professor at Penn State University and the author of the famous “hockey stick” graph. The “hockey stick” graph was published in 1998 and presented a wildly new assessment of earth’s temperature over the past millennium. Openly available climate data traces a roller coaster line of warming and cooling over the past 1,000 years. This line averages about 9.2 C, rising to nearly 10.0 C during the Medieval Warming Period and dropping to 8.6 C at the …