Earth
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Life
Caribbean’s coral reefs approach tipping point
A survey of 19 colonies suggests many may soon begin to shrink.
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Humans
U.S. team breaks through subglacial lake
Testing should continue for a day or more, probing for life in the Antarctic depths.
By Janet Raloff -
Earth
Human-made waste heat warms climate
Energy dissipated as heat in cities can cause regional temperature changes, simulations suggest.
By Erin Wayman -
Earth
Watering fields in California boosts rainfall in Southwest
Irrigation has downstream effects on climate and runoff to Colorado River.
By Erin Wayman -
Earth
Chemical tied to intergenerational obesity
Mice ingesting the compound tributyltin pass effects to grandchildren.
By Erin Wayman -
Humans
Cold spells were dark times in Eastern Europe
Cooler periods coincided with conflicts and disease outbreaks, a tree-ring study spanning the last millennium finds.
By Erin Wayman -
Earth
Glaciers carve path for future buildup
Previously sculpted landscapes accumulate ice more quickly than steep valleys.
By Erin Wayman -
Earth
Quakes may bring nearby rocks closer to rupture
Lab studies could explain how a seemingly stable geologic fault can fail.
By Erin Wayman -
Earth
Antarctic subglacial drilling effort suspended
A British-led team has called off this season’s campaign to penetrate Lake Ellsworth.
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Earth
West Antarctica warming fast
A reconstructed temperature record from a high-altitude station shows an unexpectedly rapid rise since 1958.
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Tech
Antarctic test of novel ice drill poised to begin
Any day now, a team of 40 scientists and support personnel expects to begin using a warm, high pressure jet of water to bore a 30 centimeter hole through 83 meters of ice. Once it breaks through to the sea below, they’ll have a few days to quickly sample life from water before the hole begins freezing up again. It's just a test. But if all goes well, in a few weeks the team will move 700 miles and bore an even deeper hole to sample for freshwater life that may have been living for eons outside even indirect contact with Earth’s atmosphere.
By Janet Raloff