Add Yahoo as a preferred source to see more of our stories on Google. A state regulator has adopted a rule banning the use of per- and polyfluoroalkyl substances, also known as PFAS or "forever ...

Over the course of millions of years, heat and pressure can transform the organic remains of animals and plants into crude oil. That's why they're called a fossil fuels — the long-dead creatures that ...

Arctic glaciers are leaking significant amounts of methane, a potent greenhouse gas. Glacial melt rivers and groundwater springs are transporting large volumes of methane from beneath the ice to the ...