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As Climate Warms, Bark Beetles March on High-Elevation Forests
December 31, 2012 — In a new study, scientists report a rising threat to the whitebark pine forests of the northern Rocky Mountains as native mountain pine beetles climb ever higher, attacking trees that have not ... > full story -
NOAA Lists Ringed and Bearded Ice Seal Populations Under the Endangered Species Act
December 30, 2012 — NOAA Fisheries has announced its final listing decision for four subspecies of ringed seals and two distinct population segments (DPSs) of bearded seals under the Endangered Species Act. ... > full story -
Groundbreaking Air-Cleaner Saves Polluting Industrials
December 28, 2012 — Industries across Europe are threatened with shutdown as European Union emission rules for Volatile Organic Compounds are tightened. Now an air cleaning invention has proven its ability to remove ... > full story -
Blades and Clades: Why Some Grasses Got Better Photosynthesis
December 26, 2012 — Two groups, or clades, of grasses that once had a common ancestry diverged, ultimately leaving the PACMAD clade more predisposed to evolve a more efficient, "C4" means of photosynthesis when CO2 is ... > full story -
Fluctuating Environment May Have Driven Human Evolution
December 26, 2012 — A series of rapid environmental changes in East Africa roughly 2 million years ago may be responsible for driving human evolution, according to researchers at Penn State and Rutgers ... > full story -
How Shrubs Are Reducing the Positive Contribution of Peatlands to Climate
December 23, 2012 — Peatlands (bogs, turf moors) are among the most important ecosystems worldwide for the storage of atmospheric carbon and thus for containing the climate warming process. In the last 30 to 50 years ... > full story -
Smaller Colorado River Projected for Coming Decades, Study Says
December 23, 2012 — Some 40 million people depend on the Colorado River Basin for water but warmer weather from rising greenhouse gas levels and a growing population may signal water shortages ahead. In a new study, ... > full story -
Study Shows Rapid Warming on the West Antarctic Ice Sheet
December 23, 2012 — In a discovery that raises further concerns about the future contribution of Antarctica to sea level rise, a new study finds that the western part of the ice sheet is experiencing nearly twice as ... > full story -
Ups and Downs of Biodiversity After Mass Extinction
December 21, 2012 — The climate after the largest mass extinction so far 252 million years ago was cool, later very warm and then cool again. Thanks to the cooler temperatures, the diversity of marine fauna ballooned, ... > full story -
Saturn Mission: Cassini Instrument Learns New Tricks
December 20, 2012 — For seven years, a mini-fridge-sized instrument aboard NASA's Cassini spacecraft reliably investigated weather patterns swirling around Saturn; the hydrocarbon composition of the surface of Saturn's ... > full story
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