The transportation industry is the source of the most greenhouse gas emissions. The combustion of fossil fuels in our automobiles, trucks, ships, trains, and planes is the primary source of greenhouse gas emissions from transportation. Petroleum-based fuels account for over 90% of all transportation fuels, primarily gasoline and diesel. The second-largest source of greenhouse gas emissions is electricity generation. About 62 percent of our electricity is generated by the combustion of fossil fuels, namely coal and natural gas. Greenhouse gas emissions from industry are mostly caused by the burning of fossil fuels for energy, as well as some chemical reactions required to manufacture commodities from raw materials. Fossil fuels burned for heat, as well as the consumption of specific products, are the primary sources of greenhouse gas emissions in businesses and residences.

Prachi Garg

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