As reported yesterday by the Global Carbon Project in its Carbon Budget 2012 report, the top four emitters of carbon from fossil fuel combustion and cement production in 2011 covered 62% of global emissions:  China (28%), United States (16%), EU27 (11%), and India (7%).  These four entities emitted about 5.62 billion tons of carbon.  (Multiply by 3.67 to get the carbon dioxide output which then equals about 20.6 billion tons.)  You can see that the US and the EU have stabilized and even lowered their emissions in recent years. Continue reading →