People are big polluters, on the land, in the sea and even in outer space, that can include anything from a hammer that floats away from the space station, to radiation from a nuclear weapons test in the atmosphere. “This can …

Xavier Gabriel can take some credit if the tiny Catalan mountain town of Sort is one of the most famous in Spain. He runs a lottery shop called La Bruja de Oro, or The Golden Witch, in a town whose …

At the 2015 Paris summit, world leaders pledged to take steps to avoid catastrophic climate change. This November in Bonn, Germany, U.N. negotiators will be back, working out the details of how to cut emissions of planet-warming gases. It is …

Australian lawmakers in the state of Victoria will debate a bill to allow medically assisted dying, a highly controversial issue fraught with arguments over who, if anyone, should be able to decide the timing of his or her own death. …