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Your search has returned 185 articles:
  • Science Ticker

    The Arctic is a final garbage dump for ocean plastic

    The Arctic Ocean is a final resting place for plastic debris dumped into the North Atlantic Ocean, new research suggests.

    A 2013 circumpolar expedition discovered hundreds of tons of plastic debris, from fishing lines to plastic films, ecologist Andrés Cózar of the University of Cádiz in Spain and colleagues report April 19 in Science Advances. While many areas remain relatively...

    04/19/2017 - 14:10 Oceans, Pollution
  • News

    More than one ocean motion determines tsunami size

    Earthquake-powered shifts along the seafloor that push water forward, not just up, could help supersize tsunamis.

    By combining laboratory experiments, computer simulations and real-world observations, researchers discovered that the horizontal movement of sloped seafloor during an underwater earthquake can give tsunamis a critical boost. Scientists previously assumed that vertical...

    04/14/2017 - 07:00 Oceans, Earth
  • Introducing

    New worm-snail is a super slimer

    A new species of worm-snail is rather snotty. Thylacodes vandyensis shoots out strands of mucus that tangle together, building a spiderweb-like trap for plankton and other floating snacks, researchers report April 5 in PeerJ.

    Other worm-snails use this hunting technique, but T. vandyensis stands out because of the “copious amounts of mucus” it ejects, says coauthor Rüdiger Bieler. This...

    04/13/2017 - 10:30 Animals, Ecology, Oceans
  • Science Ticker

    The Great Barrier Reef is experiencing a major coral bleaching event right now

    A severe coral bleaching event spurred by high ocean temperatures has struck the Great Barrier Reef for an unprecedented second time in 12 months, reveal aerial surveys released April 10 by scientists at James Cook University in Townsville, Australia. While last year the northern third of the reef was hardest hit, this time around the reef’s midsection experienced the worst bleaching. The two...

    04/11/2017 - 15:45 Climate, Oceans, Ecosystems
  • News in Brief

    Thinning ice creates undersea Arctic greenhouses

    Sea ice skylights formed by warming Arctic temperatures increasingly allow enough sunlight into the waters below to spur phytoplankton blooms, new research suggests. Such conditions, probably a rarity more than two decades ago, now extend to roughly 30 percent of the ice-covered Arctic Ocean during July, researchers report March 29 in Science Advances.

    The microscopic critters need...

    03/29/2017 - 14:00 Oceans, Ecosystems, Climate
  • Science Ticker

    Arctic sea ice hits record wintertime low

    Arctic sea ice has hit a record low for the third year in a row. It’s the paltriest maximum extent seen since recordkeeping began in 1979, scientists at NASA and the National Snow and Ice Data Center announced March 22.

    Total sea ice cover on the Arctic Ocean peaked on March 7, satellite observations show, reaching a total area of 14.42 million square kilometers. That’s around 100,000...

    03/23/2017 - 12:31 Climate, Oceans
  • Science Ticker

    Saturn’s ‘Death Star’ moon may not conceal an ocean after all

    An ocean of liquid water probably doesn’t lurk beneath the icy surface of Mimas, Saturn’s smallest major moon, new calculations suggest. Scientists had proposed the ocean in 2014 to help explain an odd wobble in the moon’s orbit.

    Other ocean-harboring moons, such as Jupiter’s Europa and Saturn’s Enceladus, are crisscrossed by fractures opened by strong tides that cause their oceans to...

    02/28/2017 - 14:07 Planetary Science, Oceans
  • Wild Things

    Most fish turned into fishmeal are species that we could be eating

    A person growing up in Peru in the 1970s or 1980s probably didn’t eat anchoveta, the local species of anchovies. The stinky, oily fish was a food fit only for animals or the very poor. The anchoveta fishery may have been (and still is, in many years) the world’s largest, but it wasn’t one that put food on the table.

    For thousands of years, though, anchoveta fed the people of Peru. It was...

    02/27/2017 - 07:00 Sustainability, Oceans, Animals
  • Science Ticker

    Antarctic sea ice shrinks to record low

    Sea ice around Antarctica shrunk to its lowest monthly extent on record in January, the National Oceanic and Atmospheric Administration reports.

    Antarctic sea ice extent averaged just 4.04 million square kilometers, 1.19 million square kilometers below the 1981 through 2010 average. That’s 280,000 square kilometers smaller than the previous record low, set in 2006.

    The new record...

    02/17/2017 - 13:14 Climate, Oceans, Earth
  • News

    Seagrasses boost ecosystem health by fighting bad bacteria

    BOSTON — For a lawn that helps the environment — and doesn’t need to be mowed — look to the ocean. Meadows of underwater seagrass plants might lower levels of harmful bacteria in nearby ocean waters, researchers reported February 16 during a news conference at the annual meeting of the American Association for the Advancement of Science. That could make the whole ecosystem — from corals to...

    02/16/2017 - 14:00 Ecosystems, Oceans