The Trump administration is releasing its proposal to undo the “endangerment finding,” the long-standing rationale and legal imperative for regulating greenhouse gases under the Clean Air Act

The Environmental Protection Agency’s endangerment finding is one of the most consequential environmental regulations in recent U.S. history. President Donald Trump’s administration this week proposed revoking the finding,

In 2009, the Environmental Protection Agency declared that the rising concentrations of greenhouse gases in the atmosphere threatened public health and welfare. This “endangerment finding,” as it’s known in legal jargon,