WASHINGTON, DC - MARCH 28: US President Donald Trump signs an Energy Independence Executive Order at the Environmental Protection Agency (EPA) Headquarters on March 28, 2017 in Washington, DC. The order reverses the Obama-era climate change policies. From left to right: US Vice President Mike Pence; the President; EPA Administrator Scott Pruitt; US Secretary of the Interior Ryan Zinke; and US Secretary of Energy Rick Perry. (Photo by Ron Sach-Pool/Getty Images)
