About a decade ago, several of Greenland's biggest glaciers suddenly began melting. A decade later, two groups of scientists are trying to unlock the secrets behind a scientific mystery story with potentially big consequences for the future of the island's rapidly-melting ice sheet.
Greenland is melting fast, and that's bad news for sea level rise and other impacts of climate change. But The World's Ari Daniel, on assignment with scientists studying a rapidly melting Greenland glacier, says all that bad news doesn't make the world's biggest island any less of a wondrous place.
With corals in trouble around the world, researchers are examining the role of smell in telling fish to come to a healthy reef or stay away. That may help scientists find ways to manipulate the smells to help damaged reefs recover.
Scientists have found a group of corals in the Pacific island nation of Palau that live in water acidic enough to kill most other corals. Now they're hoping what they learn from the unusual reefs may help save others threatened by the increasing acidity of oceans around the world.
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