News tagged with hydrologic cycle
Toxic mercury, accumulating in the Arctic, springs from a hidden source
(Phys.org) -- Environmental scientists at Harvard have discovered that the Arctic accumulation of mercury, a toxic element, is caused by both atmospheric forces and the flow of circumpolar rivers that carry ...
Space & Earth / Earth Sciences
May 21, 2012 |
3.7 / 5 (3) |
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Atmospheric warming altering ocean salinity
The warming climate is altering the saltiness of the world's oceans, and the computer models scientists have been using to measure the effects are underestimating changes to the global water cycle, a group ...
Space & Earth / Earth Sciences
Apr 27, 2012 |
3.8 / 5 (21) |
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Testing the water for bioenergy crops
Many energy researchers and environmental advocates are excited about the prospect of gaining more efficient large-scale biofuel production by using large grasses like miscanthus or switchgrass rather than ...
Aug 29, 2011 |
3 / 5 (1) |
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Life Without Water?
On Saturn’s giant moon Titan, it is so cold that water is frozen as hard as granite. And yet there is a complete liquid cycle of methane and ethane. Scientists wonder whether there could also be life.
Space & Earth / Space Exploration
Mar 18, 2010 |
4.8 / 5 (22) |
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Search results for hydrologic cycle
Did ancient Mars have a runaway greenhouse?
Cosmic impacts that once bombed Mars might have sent temperatures skyrocketing upward on the Red Planet in ancient times, enough to set warming of the surface on a runaway course, researchers say.
Space & Earth / Space Exploration
May 24, 2012 |
3 / 5 (4) |
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Gourmet butterflies speed north: study
A new study led by scientists in the Department of Biology at the University of York has shown how a butterfly has changed its diet, and consequently has sped northwards in response to climate change. Their study is published ...
May 24, 2012 |
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Population pressure impacts world wetlands
(Phys.org) -- The area of the globe covered by wetlands (swamps, marshes, lakes, etc.) has dropped by 6% in fifteen years. This decline is particularly severe in tropical and subtropical regions, and in areas ...
May 14, 2012 |
3.7 / 5 (3) |
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Model forecasts long-term impacts of forest land-use decisions
The drive to develop crops for use as biofuel, continues to raise questions about additional uses of forest land. A cutting edge computer model developed at North Carolina State University offers detailed insight to predict ...
May 09, 2012 |
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Devising a 'silver bullet' for measuring water use by plants
(Phys.org) -- Most gardeners can tell by rule of thumb how much water their tomatoes and carrots need, but taking an accurate reading of plants' actual water use is a very difficult problem. Although ...
Apr 24, 2012 |
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NASA goes on top of the Smokies, all covered in light rain
If you walk into a cloud at the top of a mountain with a cup to slake your thirst, it might take a while for your cup to fill. The tiny, barely-there droplets are difficult to see, and for scientists they, ...
Space & Earth / Earth Sciences
Apr 24, 2012 |
3 / 5 (1) |
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Impact of warming climate doesn't always translate to streamflow
An analysis of 35 headwater basins in the United States and Canada found that the impact of warmer air temperatures on streamflow rates was less than expected in many locations, suggesting that some ecosystems may be resilient ...
Apr 06, 2012 |
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Cooking better biochar: Study improves recipe for soil additive
Backyard gardeners who make their own charcoal soil additives, or biochar, should take care to heat their charcoal to at least 450 degrees Celsius to ensure that water and nutrients get to their plants, according ...
Mar 22, 2012 |
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Spallation Neutron Source puts the squeeze on methane hydrate cages
(PhysOrg.com) -- Imagine a robot sent out on the prowl on this energy hungry planet looking for methane, the principal component of what we call "natural gas" and probably the most abundant organic compound ...
Mar 15, 2012 |
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Following a watershed's winding path to sustainability
Cherokee Marsh, it's called, this sunken enclave surrounded by cattails and bulrushes. The marsh is a mere dot on a map of the state of Wisconsin, but its importance reaches far beyond the wetland's ...
Mar 12, 2012 |
4.7 / 5 (3) |
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List of search results for hydrologic cycle
