"A coalition of 17 U.S. states filed a legal challenge on Wednesday against efforts by President Donald Trump's administration to roll back climate change regulations, deepening a political rift over his emerging energy policies.

Led by New York state, the coalition said the administration has a legal duty to regulate emissions of the gases scientists believe cause global climate change.

"The law is clear: the EPA must limit carbon pollution from power plants," New York Attorney General Eric Schneiderman said in a statement announcing the challenge."

Richard Valdmanis reports for Reuters April 5, 2017. [2]