Reuters/Joshua Roberts
President Donald Trump holds up a chart showing the complexity of regulations, which he has been trying to reduce.
In perhaps a reflection of the passionate environmental debate happening across the country, EPA administrator Scott Pruitt plans to pit "red" teams against "blue" teams to debate climate change.
President Donald Trump has pledged to withdraw the US from the Paris agreement, a move which led mayors, governors, leading academics, and some of the biggest businesses in the US to start a movement to remain by the Paris Agreement pledges even if the country won't.
With so much disagreement about environmental policy in the air, many people are turning to their representatives on the issue.
We dug into the League of Conservation Voters' annual scorecard to rank US senators based on their environmental legacies, according to the nonprofit political action organization's "lifetime score" of lawmakers' voting records. The most recent scorecard is from 2016, so new senators who were elected in November weren't included.
Here are the 15 worst senators for the environment, based on their lifetime score from the scorecard: