Greenhouse gas (GHG) emissions continue to be an important focus area for state, local, and federal agencies. The transportation sector is the second biggest contributor to GHG emissions in the United States, and Texas contributes the highest emissions among states in the country. Many states have implemented policies and programs targeting greenhouse gas emissions reductions through climate action plans and other initiatives, which cover a range of sectors including transportation. Also, many transportation agencies (state departments of transportation, metropolitan planning organizations [MPOs], and others) are moving toward tackling the issue of GHG emissions on a voluntary or state-level policy basis. It is also expected that in the future, federal regulations could require that these agencies address GHG emissions or that transportation funding may also be tied to a demonstration of GHG reductions in long-range transportation planning (LRTP).

US Transportation Collection