资源环境科技发展态势分析平台

The transportation sector includes economic activity from all forms of travel. Most modes of transportation depend heavily on fossil fuels for energy: passenger vehicles largely burn gasoline, delivery trucks typically use diesel fuel, and aircraft rely exclusively on jet fuel. Each of these fuels is derived from crude oil, causing the transportation sector to be a large source of greenhouse gas (GHG) emissions. In 2019, transportation was the largest source of GHG emissions in the United States (see Figure 1).