You can’t manage emissions until you can measure them, and it’s harder than you think

Carbon taxes and emissions trading schemes are intended to shift our preferences towards lower carbon use. But we don’t know exactly, or even approximately, whether our new choices do in fact mean we are reducing our carbon use.

‘US and China must reduce emissions 80 percent by 2020’

Open letter by 23 high-ranking officials of American energy, climate and environmental NGOs, including Bill McKibben of 350.org, to President Barack Obama and President Hu Jintao, calling for wartime-like mobilization by the governments of the United States and China to … Continue reading