Dendrochronologists have shown that tree-ring data produce a remarkably accurate history of droughts and other climate changes. Combined with reliable drought indices and historical descriptions of climate conditions, dendrochronology ...
Feb 18, 2013
3 / 5 (2)
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Through research led by Michigan State University, crop yields have increased dramatically. The children of Ekwendi, Malawi, also have gained weight and are taller. These improvements bring smiles to Sieglinde Snapp, MSU ...
Feb 17, 2013
5 / 5 (1)
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A fossilized bone fragment found buried deep in the soil of a Serbian cave is causing scientists to reconsider what happened during a critical period in human development, when the strands of modern humanity ...
Feb 13, 2013
5 / 5 (12)
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Ancient carbon trapped in Arctic permafrost is extremely sensitive to sunlight and, if exposed to the surface when long-frozen soils melt and collapse, can release climate-warming carbon dioxide gas into ...
Feb 11, 2013
4.3 / 5 (22)
241
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Preserving genetically diverse local crops in areas where small-scale farms are rapidly modernizing is possible, according to a Penn State geographer, who is part of an international research project investigating the biodiversity ...
Feb 06, 2013
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The semi-aquatic earthworms in the genus Glyphidrilus are somewhat unfamiliar species that live between the terrestrial and freshwater ecosystems of rivers, streams, canals, ponds, swamps and paddy system ...
Feb 06, 2013
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Land contaminated with substances in or under the land can be potentially hazardous to health or the environment. However, in many cases there is minimal risk from living or working on contaminated ground ...
Feb 06, 2013
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(Phys.org)—Earthworms are long revered for their beneficial role in soil fertility, but with the good comes the bad: they also increase greenhouse gas emissions from soils, according to a study published Feb. 3 in Nature Cl ...
Feb 05, 2013
4.1 / 5 (9)
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Increased levels of greenhouse gases, particularly carbon dioxide (CO2), have been associated with the burning of fossil fuels, deforestation, cultivation of grasslands, drainage of the land, and land use ...
Feb 01, 2013
5 / 5 (1)
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(Phys.org)—Setting up a lunar base could be made much simpler by using a 3D printer to build it from local materials. Industrial partners including renowned architects Foster + Partners have joined with ...
Jan 31, 2013
4.9 / 5 (30)
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(Phys.org)—In the snow of Alaska, a Stanford-led team of researchers has found a new way to determine if the soil beneath lakes, normally frozen, is thawing as a result of climate change. If so, the lakes ...
Jan 31, 2013
3.8 / 5 (4)
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