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Seafloor sediments reveal how East Antarctic ice temporarily halted its retreat and advanced 40 miles
المصدر: Phys.org - latest science and technology news stories · نُشر
Off the coast of East Antarctica, researchers led by Kiel University (CAU) and the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI), have investigated an exceptionally large sedimentary body embedded in the seafloor of Vincennes Bay: a so-called "gro
Off the coast of East Antarctica, researchers led by Kiel University (CAU) and the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI), have investigated an exceptionally large sedimentary body embedded in the seafloor of Vincennes Bay: a so-called "grounding-zone wedge"—symmetrical, wedge-shaped, approximately 260 meters (853 feet) high and 65 kilometers (40 miles) long. With a volume of more than 580 cubic kilometers (139 cubic miles), it is the largest known isolated grounding-zone wedge on a glaciated continental shelf to date and constitutes an exceptional archive of East Antarctica's glacial history.
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Boosting seawater alkalinity could help communities tackle local carbon emissions, researchers argue
When scientists discovered that increasing the ocean's natural alkalinity could enhance seawater's capacity to absorb and store carbon dioxide (CO₂), the idea quickly gained attention as a potential geoengineering solution to climate change. Early visions suggested it could remov
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Australia's wildfire crisis linked to colonial land-use change
Research published today in Nature by University of Melbourne researchers, in collaboration with Gunaikurnai Land and Waters Corporation, reconstructed the past 1,000 years of vegetation, fire and erosion in Croajingolong National Park in East Gippsland, one of southeastern Austr
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As voters weigh incumbents, research complicates case for congressional term limits
Most voters see Congress through floor debates, campaign promises and partisan conflict. Yet about half the work done by the average congressional office involves helping constituents, businesses, nonprofits, universities and local governments navigate federal agencies.
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Compact CRISPR alternative uses bacterial proteins to insert large DNA segments
A new engineered gene-editing system, proven in bacteria and showing promise for use in plants, animals and humans, addresses some limitations of current gene-editing tools, with the goal of improving their use in research, crop development and disease treatment.
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The internal chemistry of phytoplankton changes as oceans become more acidic
Our oceans are becoming more acidic, which could have major consequences for marine life. Of particular concern is what this could mean for phytoplankton, the microscopic photosynthetic organisms that form the basis of marine food webs and produce roughly half of the oxygen on Ea
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