News tagged with sediment losses
Study shows more corn for biofuels would hurt water
(PhysOrg.com) -- More of the fertilizers and pesticides used to grow corn would find their way into nearby water sources if ethanol demands lead to planting more acres in corn, according to a Purdue University study.
Sep 28, 2009 |
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Search results for sediment losses
Rapid coral death by a deadly chain reaction
(Phys.org) -- Most people are fascinated by the colorful and exotic coral reefs, which form habitats with probably the largest biodiversity. But human civilisation is the top danger to these fragile ecosystems ...
May 24, 2012 |
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Geologists map prehistoric climate changes in Canada's Yukon Territory
Researchers at the University of Pittsburgh have joined an international group of scientists to study past climate changes in the Arctic. Comprising geologists from Pitt's Department of Geology and Planetary Science, the ...
Space & Earth / Earth Sciences
May 08, 2012 |
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70 percent of beaches eroding on Hawaiian islands Kauai, Oahu, and Maui
An assessment of coastal change over the past century has found 70 percent of beaches on the islands of Kaua'i, O'ahu, and Maui are undergoing long-term erosion, according to a U.S. Geological Survey (USGS) ...
Space & Earth / Earth Sciences
May 07, 2012 |
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Could the Mekong's water destabilise Asia?
(Phys.org) -- South-East Asian nations surrounding the Lower Mekong Basin should put construction of hydro-electric dams on the Mekong River on hold if they want to avoid a human security disaster more reminiscent ...
Apr 26, 2012 |
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Planned dams in Amazon may have largely negative ecosystem impact
The Andean Amazon is becoming a major frontier for new hydroelectric dams, but an analysis of the potential impacts of these planned projects suggests that there may be serious ecological concerns to take into account. The ...
Apr 18, 2012 |
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Why is Great Barrier Reef 'not so great'
(Phys.org) -- Researchers at James Cook University have questioned why coral cover on the Great Barrier Reef has continued to decline when it is recognised as “the best managed coral reef system in the world”.
Apr 13, 2012 |
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Thawing permafrost 50 million years ago led to extreme global warming events
In a new study reported in Nature, climate scientist Rob DeConto of the University of Massachusetts Amherst and colleagues elsewhere propose a simple new mechanism to explain the source of carbon that fed a ...
Space & Earth / Earth Sciences
Apr 04, 2012 |
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Scientists find slow subsidence of Earth's crust beneath the Mississippi delta
The Earth's crust beneath the Mississippi Delta sinks at a much slower rate than what had been assumed.
Space & Earth / Earth Sciences
Apr 02, 2012 |
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Mud manifests history of clear water in murky Minnesota duck depot Lake Christina
During peak migration days in the early 1900s, tens of thousands of canvasback ducks could be seen floating and diving on Minnesota's Lake Christina. Since midcentury, changes to the lake have diminished this grand, iconic ...
Mar 27, 2012 |
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Hunters, not climate change, killed giant beasts 40,000 years ago
The first Australians hunted giant kangaroos, rhinoceros-sized marsupials, huge goannas and other megafauna to extinction shortly after arriving in the country more than 40,000 years ago, new research claims.
Mar 22, 2012 |
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List of search results for sediment losses
