Week: A new United Nations report stresses that in order to stop the most devastating effects of global warming, the world must take action by 2020.
The Intergovernmental Panel on Climate Change (IPCC) mitigation report was released Sunday in Berlin, and according to National Geographic, it contains 1,200 scenarios that could keep the most severe effects of global warming at bay by 2100. The proposals include growing forests to pulling carbon out of the air and painting roofs in a way that absorbs less...