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Sea ice extent sinks to record lows at both poles

Wed, 22 Mar 2017 14:31:49 EDT ~ The Arctic sea ice maximum extent and Antarctic minimum extent are both record lows this year. Combined, sea ice numbers are at their lowest point since satellites began to continuously measure sea ice in 1979. Find out more...

Under the dead sea, warnings of dire drought

Wed, 22 Mar 2017 14:31:39 EDT ~ Nearly 1,000 feet below the bed of the Dead Sea, scientists have found evidence that during past warm periods, the Mideast has suffered drought on scales never recorded by humans -- a possible warning for current times. Thick layers of crystalline salt show that rainfall plummeted to as little as a fifth of modern levels some 120,000 years ago, and again about 10,000 years ago. Find out more...

Amazon River no younger than 9 million years, new study shows

Tue, 21 Mar 2017 12:38:23 EDT ~ Researchers have determined the age of the formation of the Amazon River at 9.4 to 9 million years ago with data that convincingly refutes substantial younger estimates. Find out more...

Heat exposure associated with mental illness

Tue, 21 Mar 2017 12:36:41 EDT ~ A mental hospital-based study in Hanoi, Vietnam looked at if there is a relationship between heat exposure and mental health problems. The results showed significant increase in hospital admissions for mental illnesses during periods of heatwaves, especially during longer periods of heat exposure. Find out more...

Dead zones may threaten coral reefs worldwide

Tue, 21 Mar 2017 12:25:21 EDT ~ Dead zones affect dozens of coral reefs around the world and threaten hundreds more according to a new study. Watching a massive coral reef die-off on the Caribbean coast of Panama, they suspected it was caused by a dead zone -- a low-oxygen area that snuffs out marine life -- rather than by ocean warming or acidification. Find out more...

Last remnant of North American ice sheet on track to vanish

Mon, 20 Mar 2017 14:38:56 EDT ~ The last piece of the ice sheet that once blanketed much of North America is doomed to disappear in the next several centuries, says a new study. Find out more...

Warning of shortage of essential minerals for laptops, cell phones, wiring

Mon, 20 Mar 2017 11:00:42 EDT ~ Researchers say global resource governance and sharing of geoscience data is needed to address challenges facing future mineral supply. Specifically of concern are a range of technology minerals, which are an essential ingredient in everything from laptops and cell phones to hybrid or electric cars to solar panels and copper wiring for homes. Find out more...

Reconsider the impact of trees on water cycles and climate, scientists say

Mon, 20 Mar 2017 11:00:39 EDT ~ Forests and trees play a major role on water cycles and cooler temperatures, contributing to food security and climate change adaptation. In recent decades, the climate change discourse has looked at forests and trees mostly as carbon stocks and carbon sinks, but now scientists are calling for more attention on the relation between trees and water in climate change. A new publication and a symposium try to shed new light on the debate. Find out more...

Extensive ice cap once covered sub-Antarctic island of South Georgia

Fri, 17 Mar 2017 08:24:46 EDT ~ The sub-antarctic island of South Georgia -- famous for its wildlife -- was covered by a massive ice cap during the last ice age, new research indicates. Find out more...

The carbon dioxide loop

Thu, 16 Mar 2017 14:11:33 EDT ~ Marine biologists quantify the carbon consumption of bacterioplankton to better understand the ocean carbon cycle. Find out more...