The transportation industry produces the largest share of greenhouse-gas emissions in the United States. Data published by the US Environmental Protection Agency in 2017 show that the sector's fossil fuel-burning vehicles: automobiles, planes, trains, and ships, are the primary culprits. Collectively, they accounted for about 29% of greenhouse-gas emissions in the states.
The transportation industry produces the largest share of greenhouse-gas emissions in the United States. Data published by the US Environmental Protection Agency in 2017 show that the sector's fossil fuel-burning vehicles: automobiles, planes, trains, and ships, are the primary culprits. Collectively, they accounted for about 29% of greenhouse-gas emissions in the states.