climate summit5

By Cynthia Rosenzweig At the Copenhagen climate summit, nations must answer a call for action—but local governments may help show the way. Climate change is no longer predicted; it has arrived. A plethora of studies shows that global changes in physical and biological systems are being caused by human-induced warming. Building on the 2007 Intergovernmental…

As the nations of the world prepare to meet in Denmark, there is some well publicized noise being emitted to lower expectations for a climate treaty. The United States and China—the two largest emitters of greenhouse gases, with over 40% of the world’s pollutant load–appear to be at the center of this effort at political…