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Sources of Greenhouse Gas Emissions – E.P.A. (2020)
The primary sources of greenhouse gas emissions in the United States are:
Transportation (27% of 2020 greenhouse gas emissions) – The transportation sector generates the largest share of greenhouse gas emissions. Greenhouse gas emissions from transportation primarily come from burning fossil fuel for our cars, trucks, ships, trains, and planes. Over 90% of the fuel used for transportation is petroleum based, which includes primarily gasoline and diesel.
Electricity production (25% of 2020 greenhouse gas emissions) – Electric power generates the second largest share of greenhouse gas emissions. Approximately 60% of our electricity comes from burning fossil fuels, mostly coal and natural gas.
Industry (24% of 2020 greenhouse gas emissions) – Greenhouse gas emissions from industry primarily come from burning fossil fuels for energy, as well as greenhouse gas emissions from certain chemical reactions necessary to produce goods from raw materials.
Commercial and Residential (13% of 2020 greenhouse gas emissions) – Greenhouse gas emissions from businesses and homes arise primarily from fossil fuels burned for heat, the use of certain products that contain greenhouse gases, and the handling of waste.
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Agriculture (11% of 2020 greenhouse gas emissions) – Greenhouse gas emissions from agriculture come from livestock such as cows, agricultural soils, and rice production.
Land Use and Forestry (13% of 2020 greenhouse gas emissions) – Land areas can act as a sink (absorbing CO2 from the atmosphere) or a source of greenhouse gas emissions. In the United States, since 1990, managed forests and other lands are a net sink, i.e., they have absorbed more CO2 from the atmosphere than they emit.
Since 1990, gross U.S. greenhouse gas emissions have decreased by 7%. From year to year, emissions can rise and fall due to changes in the economy, the price of fuel, and other factors. In 2020, U.S. greenhouse gas emissions decreased 11% compared to 2019 levels. The sharp decline in emissions was primarily from CO2 emissions from fossil fuel combustion and was largely due to the coronavirus (COVID-19) pandemic-related reductions in travel and economic activity, including a 13% decrease in transportation emissions driven by less travel due to the COVID-19 pandemic.
So, as we can clearly see from the E.P.A. provided information above, cows are clearly not a threat to our climate.
Source Link: https://www.epa.gov/ghgemissions/sources-greenhouse-gas-emissions