The Trump administration's rollback exempts some coal-fired power plants from Obama-era rules for wastewater containing toxins like mercury, arsenic and selenium.
An NPR investigation into the regulatory failures — and the human costs, including to Pennsylvania miners — of a disease that has been described as "suffocating while alive."
Community solar projects are larger than home rooftop panels, but smaller than utility-scale grids. Subscribers use the energy that's generated and get a credit on their electricity bills.
Coal plants could lower operating temperatures to ‘evade’ stringent limits on nitrogen oxides that contribute to smog. DEP has two years to come up with a new plan.