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Soil moisture can determine how quickly a wildfire spreads, how fast a hill turns into a mudslide and, perhaps most importantly, how productive our food systems are.

A sweeping new report, unveiled at the start of a major U.N. conference on the conservation of wildlife, held in Samarkand, Uzbekistan, finds that nearly half of migratory species are in decline, from Egyptian vultures to steppe eagles to wild camels.

Sea urchins exposed to diluted seawater for long periods show signs of physical deterioration, according to scientists from British Antarctic Survey, the University of Cambridge and the Scottish Association for Marine Science.

New findings explain how soil sequesters plant-based carbon from the atmosphere.

A chemical element so visually striking it was named for a goddess shows a “Goldilocks” level of reactivity – neither too much nor too little – that makes it a strong candidate as a carbon scrubbing tool.