The following is a guest post fromÂ Paul McDivitt,Â a second-year masterâs student studying journalism and mass communication research at the University of Colorado-Boulder. He is taking a course in journalistic blogging from me there. This is his second post at Discover. His first was at Keith Kloor’s Collide-a-Scape blog. Follow Paul on twitterÂ @paulmcdivitt.
In the wake of an historic agreement between the United States and China to curb greenhouse gas emissions, a new visualization from