U.N. Hires Grad Students To Author Key Climate Report | Fox News

Klein confirmed in an email to FoxNews.com that he had not yet turned 25 when he was selected to author a portion of the report that would shape the world's climate policy.

“I am happy to leave it to others to reflect on the fact that I was 24 when I was lead author of an IPCC chapter for the first time, and that it was two years after I did a three-month work placement at Greenpeace,” Dr. Klein wrote.