Living on Earth: YOUNG: From the Jennifer and Ted Stanley Studios in Somerville, Massachusetts – this is Living on Earth. I’m Jeff Young. Developments in both science and politics on climate change: The US and China agreed to cooperate on cleaner and more efficient forms of energy. But world leaders downplayed expectations about next month’s climate summit in Copenhagen. So political leaders sent mixed messages, but climate science sent a clear signal. The international scientists of the Global Carbon …