China will scale back wind and solar subsidies after meeting its renewable energy targets six years early, a decision likely ...

Some of the dams and weirs are permanently closed to the public. For referable dams, links to the emergency action plans are included in the map. This map indicates which dams are open to the public: ...

New research shows that when an asteroid slammed into the moon billions of years ago, it carved out a pair of grand canyons ...