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Atmospheric carbon dioxide hits record high
The global average concentration of the greenhouse gas surpassed 400 parts per million in March for the first time since record-keeping began.
May 6, 2015
Warm oceans triggered US Dust Bowl
Ocean hot spots in the Atlantic and Pacific were drivers of the hottest summers on record for the central U.S. in 1934 and 1936, suggest new study.
May 6, 2015
Huge salty aquifer found under Antarctica
Antarctica's Dry Valleys are home to briny lakes at the surface. Now scientists find liquid salt water - possibly containing unknown ecosystems - below ground.
May 5, 2015
Dinosaur-killing asteroid caused India’s Deccan Traps?
The asteroid that killed the dinosaurs 66 million years ago might have mobilized an existing volcanic system, causing vast lava flows.
May 4, 2015
Preserving nature in the Age of Humans
Scientists, philosophers, historians, journalists, agency administrators and activists grapple with what it means to 'save nature' in the Anthropocene.
May 4, 2015
Tonga’s newest island: Before and after views
Last December, an undersea volcano exploded to life in the Polynesian island kingdom of Tonga. The eruption created a new island.
May 4, 2015
Who loves rainbows?
April showers brought these rainbows. Enjoy these awesome photos from our friends!
April 30, 2015
Why do global temperature records differ?
NASA, NOAA, and the Japanese Meteorological Agency all publish slightly different global temperature measurements. Why?
April 28, 2015
Huge magma reservoir discovered under Yellowstone supervolcano
It's below the magma chamber they knew about before and contains enough hot, partly molten rock to fill the Grand Canyon 11 times over.
April 27, 2015
Imagine you are diving, and suddenly …
Amazing video of whales surfacing - open-mouthed - under a diving expedition.
April 27, 2015
