Direct Greenhouse Gas Emissions
Between the period 1970 to 2004, GHG emissions (measured in CO2-equivalent) increased at an average rate of 1.6% per year, with CO2 emissions from the use of fossil fuels growing at a rate of 1.9% per year. Total anthropogenic emissions at the end of 2009 were estimated at 49.5 gigatonnes CO2-equivalent. These emissions include CO2 from fossil fuel use and from land use, as well as emissions of methane, nitrous oxide and other GHGs covered by the Kyoto Protocol.
At present, the two primary sources of CO2 emissions are from burning coal used for electricity generation and petroleum used for motor transport.
Read more about this topic: Greenhouse Gas
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