Referring to a little-known provision, it said power plants and others could write to seek exemptions to mercury and other restrictions and that “the president will make a decision.” By ...

Welcome to Nat Geo Your Shot: National Geographic’s global community for aspiring visual storytellers. Find the community on Instagram @NatGeoYourShot and follow along for hashtag challenges ...

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Australia's weather is influenced by many climate drivers. El Niño and La Niña have the strongest influence on year-to-year climate variability for most of the country. They are part of a natural ...