Update: An earlier version of the attached podcast said the United States is the largest emitter of CO2 emissions per capita. This has been corrected to say the US is the world's second largest emitter of CO2 emissions, after China. On the per capita front, according to the European Union's Emission Database for Global Atmospheric Research, the world average for CO2 per capita is 4.926 tons. China's per capita emissions are 7.42 tons. The US per capita total is 16.55 tons, which ranks it #11 in per capita emissions.