Patrick Bayou, pictured on Sept. 2, flooded when Hurricane Harvey slammed the Houston area. The bayou is a Superfund toxic waste site. A March cleanup report for the site did not include preparations for more severe flood events as a result of climate change.
Participants look at a world map showing climate anomalies during the World Climate Change Conference 2015 in France. A draft government report on climate, which was released by The New York Times ahead of publication, says the U.S. is already experiencing the consequences of global warming.
Scott Pruitt's comments on carbon dioxide come just over two weeks after he took the helm of the Environmental Protection Agency, the agency with the authority to regulate CO2 and other greenhouse gases as pollutants.
Doug Ericksen, a Washington state senator who is the head of communications for the Trump administration's EPA transition team, listens to testimony during a hearing in Olympia, Wash., in 2013.
Rachel La Corte/AP
Electric cars are parked at the Los Angeles Police Department in 2016. California's latest plan for to fight climate change includes renewable energy and putting millions of electric cars on the road.
Senate Majority Leader Mitch McConnell, R-Ky., meets Jan. 6 with Environmental Protection Agency Administrator-designate Scott Pruitt (right) on Capitol Hill. Pruitt's confirmation hearing is scheduled for 10 a.m. ET on Wednesday.
Senate Majority Leader Mitch McConnell and Scott Pruitt, Oklahoma's attorney general and President-elect Donald Trump's nominee to head the EPA, earlier this month.
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