US GHG emissions

Category of GHG emitter US GHG emissions
“Dirty” power plants
(EPA: same classification)
28%
Industry’s hydrocarbon powered devices (including oil industry’s own consumption from extraction to distribution)
(EPA: same classification)
22%
Transport’s gas or diesel engines
(EPA: same classification)
29%
Building (residential and commercial)
(EPA: 12% for direct emissions)
12%
Agriculture
(EPA: same classification)
9%
TOTAL OF HUMAN ACTIVITY 100%
CO2 removed by ecosystems (i.e., forest and other plants) isn’t included. It does mitigate numbers above, but it shouldn’t deviate countries benefiting from large ecosystems (e.g., Amazon rainforest) to go for a carbon-free economy.
(EPA estimates the US “net sink” at 11%)
-11%

These numbers come from the EPA (2017). Others institutions such as the IEA can be consulted, although they may classify the sources in different categories and numbers may vary slightly for other years.

WATCHOUT about “fake” news: Electricity is often mixed up with energy. Electricity is only 25% of worldwide GHG emissions, while 80% of our energy come from the hydrocarbons generating most of the GHG emissions. A spectacular saving of 1% of electricity represents only a mediocre 0.25% of hydrocarbon energy or associated GHG reduction.

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