Katharine Hayhoe is a climate scientist and evangelical Christian who uses academics and YouTube to communicate on the polarizing topic.
Mark Serreze details his research trips in the Arctic and his change of heart in his new book, "Brave New Arctic."
A new CU Boulder study reveals more similarities than differences in how the parties view climate change issues.
"We knew that if we put it on our school and we got the word around, then other schools would do it," says a student at Mackintosh Academy.
- The new target was submitted to the UN Framework Convention on Climate Change Tuesday. It is part of a plan for a new international treaty to be hammered out in December in Paris.Read More