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After mastodons and mammoths, a transformed landscape
And when their populations crashed, emptying a land whose diversity of large animals equaled or surpassed Africa's wildlife-rich Serengeti plains then or now, an entirely novel ecosystem emerged ...
Earth Sciences |
Read moreVolatile Gas Could Turn Rwandan Lake into a Freshwater Time Bomb
A dangerous level of carbon dioxide and methane gas haunts Lake Kivu, the freshwater lake system bordering Rwanda and the Republic of Congo.Scientists can’t say for sure if the volatile mixtur...
Ecology, The Environment and Conservation | Read morePlants prefer their kin, but crowd out competition when sharing a pot with strangers
The research, which appears in the current issue of the American Journal of Botany, suggests non-kin plants will not only compete underground for soil nutrients, but will attempt to muscle out the com...
Life Sciences | Read moreWarmer Means Windier on World’s Biggest Lake
Since 1985, surface water temperatures measured by lake buoys have climbed 1.2 degrees per decade, about 15 percent faster than the air above the lake and twice as fast as warming over nearby land....
Earth Sciences | Read moreTiny Bubbles Clean Oil from Water
Now, a University of Utah engineer has developed an inexpensive new method to remove oil sheen by repeatedly pressurizing and depressurizing ozone gas, creating microscopic bubbles that attack the oil...
Life Sciences | Read moreAlberta's hidden valleys offer both resources and danger
The valley was created by glaciers and over time filled with loose rock gradually disappearing from the landscape. There had already been extensive underground mapping of the area, but Schmitt...
Earth Sciences | Read moreA Lightning Strike in Africa Helps Take the Pulse of the Sun
Sunspots, which rotate around the sun's surface, tell us a great deal about our own planet. Scientists rely on them, for instance, to measure the sun's rotation or to prepare long-range fore...
Earth Sciences | Read moreAirborne nitrogen shifts aquatic nutrient limitation in pristine lakes
Examining nitrogen deposition in alpine and subalpine lakes in Colorado, Sweden and Norway, James Elser, a limnologist in the School of Life Sciences at Arizona State University, and his colleagues fo...
Studies and Analyses | Read moreU of Utah Celebrates 'First Light' for New Observatory
The new Willard L. Eccles Observatory’s 32-inch reflecting telescope took its first pictures the night of Oct. 15. The “first light” photo is an edge-on view of the spiral galaxy NGC 891, says Wayne S...
Physics and Astronomy | Read moreEarthquakes actually aftershocks of 19th century quakes
When small earthquakes shake the central U.S., citizens often fear the rumbles are signs a big earthquake is coming. Fortunately, new research instead shows that most of these earthquakes are aftersho...
Earth Sciences | Read moreData point to some improvements in China's environment
The rapid growth of China's forests over the past 20 years makes them the fastest growing forest resources in the world, according to an assessment published in the November issue of BioScience. ...
Ecology, The Environment and Conservation | Read moreRobot fish could monitor water quality
Nature inspires technology for an engineer and an ecologist teamed up at Michigan State University. They're developing robots that use advanced materials to swim like fish to probe underwater env...
Ecology, The Environment and Conservation | Read moreFSU, Duke Partner to Study Impact of Gulf’s ‘Dead Zone’ on Shrimp Fishery
Florida State will serve as the lead institution for the collaborative project, which is funded by a four-year, $702,969 grant from the National Oceanic and Atmospheric Administration’s (NOAA) Norther...
Ecology, The Environment and Conservation | Read moreSandia, Others Funded to Sequence Microbial Genes for Potential Biofuels Use
“This award positions a very talented team to collaboratively apply DOE’s unique facilities in genomics and systems biology to the important challenge of sustainable bioenergy production,” said Grant ...
Life Sciences | Read moreFortuitous Research Provides First Detailed Documentation of Tsunami Erosion
Now, for the first time, a group of scientists working in the Kuril Islands off the east coast of Russia has documented the scope of tsunami-caused erosion and found that a wave can carry away far mor...
Earth Sciences | Read more
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