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The Energy Information Administration has only published monthly data through October of this year.

But, after making some reasonable assumptions for November and December, I came up with the following CO2 emissions from the electricity sector for 2012.

Coal- 1497 million tonnes CO2
Natural Gas- 556 million tonnes
Petroleum Liquids- 11.1 million tonnes
Petroleum Coke- 10.3 million tonnes
Other Gas plus Other~ 15 million tonnes
Total- 2090 million tonnes CO2

To calculate these numbers, I used the CO2 emission factors here:

To compare against previous years, the following link shows the CO2 emitted from the electricity sector (pdf):

If the transportation and other non-electricity sectors produced the same amount of CO2 as they did in 2009, then the total CO2 produced in the US this year will be 5355 million tonnes. This is pretty good. You have to go back to 1995 or so to see a total number this low.

However, compared to China, the US emissions are relatively flat. The US has been in the range of 5300 to 6000 since 1995. China has gone from 2900 to 8300 during that time.

I don't expect the above numbers to be 100% accurate, but the overall trends are clear. Coal use for electricity in the US is trending down. (Internationally, coal is trending up.) Natural gas and Renewables are trending up. Petroleum for electricity is trending down, but oil is already a very small share of the total for power. Nuclear is down slightly, as plants in California, Nebraska and Florida remain shut down for the foreseeable future. Hydro is somewhat variable depending on the amount of water flow available.

- Pete
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