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ScienceDaily: Earth & Climate News |
The climate changed rapidly alongside sea ice decline in the north Posted: 04 Dec 2020 10:13 AM PST Researchers have shown that abrupt climate change occurred as a result of widespread decrease of sea ice. This scientific breakthrough concludes a long-lasting debate on the mechanisms causing abrupt climate change during the glacial period. It also documents that the cause of the swiftness and extent of sudden climate change must be found in the oceans. |
Leaf microbiomes are a neighborhood affair in northern forests Posted: 03 Dec 2020 02:34 PM PST Leaf microbiomes of sugar maple trees vary across the species' range, changing in accordance with the types of trees in the surrounding 'neighborhood.' |
Researchers discover life in deep ocean sediments at or above water's boiling point Posted: 03 Dec 2020 11:42 AM PST Biologists found single-celled organisms living in sediments 1180 meters beneath the ocean at temperatures of 120 degrees Celsius. |
Tire-related chemical is largely responsible for adult coho salmon deaths in urban streams Posted: 03 Dec 2020 11:42 AM PST Scientists have discovered a chemical that kills coho salmon in urban streams before the fish can spawn. |
Shuttering fossil fuel power plants may cost less than expected Posted: 03 Dec 2020 11:42 AM PST Decarbonizing US electricity production will require both construction of renewable energy sources and retirement of power plants now operated by fossil fuels. A generator-level model suggests that most fossil fuel power plants could complete normal lifespans and still close by 2035 because so many facilities are nearing the end of their operational lives. |
Robot fleet dives for climate answers in 'marine snow' Posted: 03 Dec 2020 08:32 AM PST Sailing from Hobart, twenty researchers hope to capture the most detailed picture yet of how marine life in the Southern Ocean captures and stores carbon from the atmosphere. |
Coasts drown as coral reefs collapse under warming and acidification Posted: 03 Dec 2020 08:32 AM PST The coastal protection coral reefs currently provide will start eroding by the end of the century, as the world continues to warm and the oceans acidify. The rate of erosion of calcium carbonate on coral reefs will overtake the rate of accretion on the majority of present-day reefs by the end of the century. |
Cluster of Alaskan islands could be single, interconnected giant volcano Posted: 03 Dec 2020 06:45 AM PST A small group of volcanic islands in Alaska's Aleutian chain might be part of a single, undiscovered giant volcano, say scientists. If the researchers' suspicions are correct, the newfound volcanic caldera would belong to the same category of volcanoes as the Yellowstone Caldera and other volcanoes that have had super-eruptions with severe global consequences. |
Satellite-tagged bottles show promise for tracking plastic litter through rivers Posted: 02 Dec 2020 04:28 PM PST A new study demonstrates the potential for plastic bottles tagged with tracking devices to deepen our understanding of how plastic pollution moves through rivers. |
Nanomaterials enable dual-mode heating and cooling device Posted: 02 Dec 2020 04:27 PM PST Engineers have demonstrated a dual-mode heating and cooling device for building climate control that, if widely deployed in the U.S., could cut HVAC energy use by nearly 20 percent. The invention uses a combination of mechanics and nanomaterials to either harness or expel certain wavelengths of light. Depending on conditions, rollers move a sheet back and forth to expose either heat-trapping materials or cooling materials. |
No poaching occurring within most Channel Islands marine protected areas Posted: 02 Dec 2020 04:27 PM PST Fish are thriving and poachers are staying out of marine protected areas around California's Channel Islands, a new population analysis shows. |
Incredible vision in ancient marine creatures drove an evolutionary arms race Posted: 02 Dec 2020 04:27 PM PST Ancient deep sea creatures called radiodonts had incredible vision that likely drove an evolutionary arms race according to new research. |
Once in a lifetime floods to become regular occurrences by end of century Posted: 02 Dec 2020 04:27 PM PST Superstorm Sandy brought flood-levels to the New York region that had not been seen in generations. Now, due to the impact of climate change, researchers have found that 100-year and 500-year flood levels could become regular occurrences for the thousands of homes surrounding Jamaica Bay, New York by the end of the century. |
Continents prone to destruction in their infancy, study finds Posted: 02 Dec 2020 08:45 AM PST Geologists have shed new light on the early history of the Earth through their discovery that continents were weak and prone to destruction in their infancy. |
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