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Sunlit Snow Triggers Atmospheric Cleaning, Ozone Depletion in the Arctic
April 24, 2013 — Researchers have discovered that sunlit snow is the major source of atmospheric bromine in the Arctic, the key to unique chemical reactions that purge pollutants and destroy ... > full story -
Iron in Primeval Seas Rusted by Bacteria
April 23, 2013 — Researchers have been able to show for the first time how microorganisms contributed to the formation of the world's biggest iron ore deposits. The biggest known deposits -- in South Africa and ... > full story -
Precision Agriculture Improves Farming Efficiency, Has Important Implications on Food Security
April 23, 2013 — Precision agriculture promises to make farming more efficient and should have an important impact on the serious issue of food security, according to a new study. A scientist assesses how there is ... > full story -
New NASA Satellite Takes the Salton Sea's Temperature
April 22, 2013 — A new NASA image may look like a typical black-and-white image of a dramatic landscape, but it tells a story of temperature. The dark waters of the Salton Sea pop in the middle of the Southern ... > full story -
NASA's HyspIRI: Seeing the Forest and the Trees and More
April 22, 2013 — Light contains fingerprints of materials that can be detected by sensors that capture the unique set of reflected wavelengths. The technique was applied to Earth during new work by ... > full story -
Geochemical Method Finds Links Between Terrestrial Climate and Atmospheric Carbon Dioxide
April 22, 2013 — Scientists used a new chemical technique to measure the change in terrestrial temperature associated with a major shift in global atmospheric CO2 concentrations nearly 34 million years ago. Their ... > full story -
Rivers Act as 'Horizontal Cooling Towers' for Power Plants, Study Finds
April 22, 2013 — Running two computer models in tandem, scientists have detailed for the first time how thermoelectric power plants interact with climate, hydrology, and aquatic ecosystems throughout the northeastern ... > full story -
Grains of Sand from Ancient Supernova Found in Meteorites: Supernova May Have Been the One That Triggered the Formation of the Solar System
April 22, 2013 — Scientists have discovered two tiny grains of silica (SiO2; the most common constituent of sand) in meteorites that fell to earth in Antarctica. Because of their isotopic composition these two grains ... > full story -
Earth's Current Warmth Not Seen in the Last 1,400 Years or More, Says Study
April 22, 2013 — Fueled by industrial greenhouse gas emissions, Earth's climate warmed more between 1971 and 2000 than during any other three-decade interval in the last 1,400 years, according to new regional ... > full story -
Ant Family Tree Constructed: Confirms Date of Evolutionary Origin, Underscores Importance of Neotropics
April 22, 2013 — Several hypotheses have been proposed to explain the higher species numbers in the tropics, but these hypotheses have never been tested for the ants, which are one of the most ecologically and ... > full story
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