300 The Environmental Debate
2016 EPA imposes new fuel economy standards on 18-wheelers, buses, delivery trucks
and other heavy duty vehicles (which make up 5 percent of vehicles of vehicles on
road but account for 20 percent of CO 2 emissions).
Catastrophic flooding in Louisiana.
Kigali Amendment to the Montreal Protocol aims to phase down the use of hydro-
fluorocarbons (HFCs).
Dakota Access Pipeline protests begin.
2017 President Donald Trump approves completion of Keystone XL and Dakota Access
Pipelines.
President Donald Trump withdraws from Paris Accords.