Greenhouse gas emissions explained, in seven balloons
In 2010, human activity caused 50 gigatonnes of CO2 equivalent in emissions.
The emissions were 76 percent carbon dioxide, 16 percent methane, 8 percent nitrous oxide, and 2 percent F-gases.
The biggest emitters were China (23 percent), the U.S. (14 percent), Europe (10 percent), India (5 percent), and Russia (5 percent).
And the primary sources of emissions were energy (35 percent), industry (18 percent), transport (13 percent), agriculture (11 percent), forestry (11 percent), buildings (8 percent), and waste (4 percent). The sources are explained in more detail in the balloons below:
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