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Michael E. Mann
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Dr. Michael E. Mann is Distinguished Professor of Meteorology at Penn State University, with joint appointments in the Department of Geosciences and the Earth and Environmental Systems Institute (EESI). He is also director of the Penn State Earth System Science Center (ESSC). He was selected by Scientific American as one of the fifty leading visionaries in science and technology in 2002. He contributed, with other IPCC authors, to the award of the 2007 Nobel Peace Prize. He was awarded the Hans Oeschger Medal of the European Geosciences Union in 2012. He is a Fellow of both the American Geophysical Union and the American Meteorological Society. He has published two books including Dire Predictions: Understanding Global Warming in 2008 and The Hockey Stick and the Climate Wars: Dispatches from the Front Lines in 2012. He is also a co-founder and avid contributor to the award-winning science website RealClimate.org.

Entries by Michael E. Mann

Earth Will Cross the Climate Danger Threshold by 2036

(489) Comments | Posted March 19, 2014 | 2:13 PM

This article was originally published in Scientific American.


The rate of global temperature rise may have hit a plateau, but a climate crisis still looms in the near future.

"Temperatures have been flat for 15 years--nobody can properly explain it," the Wall...

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Global Warming Speed Bump? The Answer May Be Blowing in the Wind!

(146) Comments | Posted February 9, 2014 | 7:01 PM

An interesting new paper by Matthew England and colleagues just published in the journal Nature Climate Change tosses another hat in the ring when it comes to explanations of the so-called "hiatus" or "pause" (I prefer "speed bump") in global warming.

As I have discussed...

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Drunken Arctic Goes Head Over Heels

(102) Comments | Posted January 31, 2014 | 9:13 AM

Even in a warmed world, winter can be cold. But is the Arctic wintering down south?

Over the past couple of months, the U.S. has seen the return of something many believed had been lost for good: cold weather.

Although the current temperatures in the eastern U.S. may seem unusually...

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Something Is Rotten at the New York Times

(234) Comments | Posted November 21, 2013 | 6:21 PM

Something is rotten at the New York Times.

When it comes to the matter of human-caused climate change, the Grey Lady's editorial page has skewed rather contrarian of late.

A couple months ago, the Intergovernmental Panel on Climate Change (IPCC) published its 5th scientific assessment, providing...

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Super Typhoon Haiyan: Realities of a Warmed World

(276) Comments | Posted November 17, 2013 | 12:32 PM

It is with a heavy heart and a respectful hand that I write this. Super Typhoon Haiyan has only just passed, and the devastation cannot yet even be fully understood. With that in mind, please consider a donation to the Philippine Red Cross.

But that will...

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Pacific Ocean Warming at Fastest Rate in 10,000 Years

(1059) Comments | Posted October 31, 2013 | 2:11 PM

Just how rapid is the current rate of warming of the ocean? There is an interesting new article by Rosenthal and collaborators in the latest issue of the journal Science entitled "Pacific Ocean Heat Content During the Past 10,000 Years" that attempts to address this question. The article...

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The IPCC, Climate Change and Bad Faith Attacks on Science

(1375) Comments | Posted September 27, 2013 | 7:44 AM

It happens every six years or so: The Intergovernmental Panel on Climate Change (IPCC) publishes its assessment of the current state of scientific understanding regarding human-caused climate change. That assessment is based on contributions from thousands of experts around the world through an exhaustive review of the peer-reviewed scientific literature...

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Why the Attorney General Matters in Virginia

(64) Comments | Posted May 13, 2013 | 9:46 AM

This past week, the concentration of carbon dioxide in the atmosphere exceeded 400 parts per million (ppm) for the first time in at least 4 million years.

Here's a simpler, starker way to put it: pollution in the air, the kind that captures greenhouse gases and makes our planet warmer,...

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Ken Cuccinelli's Cloudy Judgment

(25) Comments | Posted February 4, 2013 | 8:19 PM

Virginia State Attorney General Ken Cuccinelli wants to be his state's next governor.

In his forthcoming book, The Last Line of Defense, he has attempted to burnish his gubernatorial bona fides by portraying himself as a bulwark against wasteful federal spending.

The Washington Post's conservative opinion writer Jennifer...

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FiveThirtyEight: The Number of Things Nate Silver Gets Wrong About Climate Change

(695) Comments | Posted September 24, 2012 | 11:25 AM

If you're a science or math geek like me, you can't help but like Nate Silver. He's the fellow nerd who made good. His site FiveThirtyEight.com is a must for any serious polling buff, and he regularly graces the leading talk shows with his insightful if wonky commentary....

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