Pollution Based on Source
Transportation burns 30% of all fossil fuels, out of all other sectors. See phttps://commons.wikimedia.org/wiki/File:US_Energy_Consumption_by_Sector.png]. Also: [1] and [2]
Cars release about 40% percent of all transportation C02 [3]
More energy is used for homes than for cars - [4]]
Aviation uses 8% of all oil [5]
Cargo ships use 7% of all oil.