From PBS NewsHour.

The Trump administration has revoked a scientific finding that was the backbone of U.S. climate policy for nearly two decades.

“We are officially terminating the so-called ‘endangerment finding,’ a disastrous Obama-era policy,” the president said during a White House event Thursday with EPA Administrator Lee Zeldin.

In 2009, the Obama administration issued the endangerment finding, a scientific declaration that greenhouse gas emissions threaten public health and welfare.

Zeldin called the finding “the Holy Grail of federal regulatory overreach.” Scientists and environmental groups said the administration’s action would lead to more pollution and health harms.

William Brangham has more.

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