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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 -
Engineers Seek Ways to Convert Methane Into Useful Chemicals
December 20, 2012 — With natural gas production rising, engineers and scientists are seeking ways to convert methane into useful chemicals. A new study suggests a ... > full story -
Eighth Landsat Satellite Arrives at Launch Site
December 20, 2012 — An oversized semi-trailer truck carrying NASA's Landsat Data Continuity Mission has arrived at its launch site at Vandenberg Air Force Base in California in preparation for launch. This NASA and U.S. ... > full story -
Death of Hemlock Trees Yields New Life for Hardwood Trees, but at What Cost to the Ecosystem?
December 20, 2012 — Due to the introduction of exotic pests and pathogens, tree species are being eliminated one by one from forest ecosystems. In some cases, scientists can observe immediately how their loss affects ... > full story -
Can Observations of a Hardy Weed Help Feed the World?
December 20, 2012 — Scientists have explored how the responses to environmental stresses by one small, genetically diverse plant species might illuminate possible approaches to addressing growing human demand for crop ... > full story -
Origin of Life: Hypothesis Traces First Protocells Back to Emergence of Cell Membrane Bioenergetics
December 20, 2012 — A coherent pathway -- which starts from no more than rocks, water and carbon dioxide and leads to the emergence of the strange bio-energetic properties of living cells -- has been traced for the ... > full story -
Wallace's Century-Old Map of Natural World Updated
December 20, 2012 — Until today, Alfred Russell Wallace's century old map from 1876 has been the backbone for our understanding of global biodiversity. Thanks to advances in modern technology and data on more than ... > full story
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