Science news.

Posted July 24, 2013:

• Tropical Ecosystems Boost Carbon Dioxide as Temperatures Rises


• Nano Scientists Reach Holy Grail in Label-Free Cancer Marker Detection: Single Molecules


• Cost of Arctic Methane Release Could Be 'Size of Global Economy', Experts Warn


• Heading for Regeneration: Researchers Reactivate Head Regeneration in Regeneration-Deficient Species of Planarians


• Key Molecular Pathways Leading to Alzheimer's Identified


• Starburst to Star Bust: Light Shed on Mystery of Missing Massive Galaxies


• Marijuana Use in Adolescence May Cause Permanent Brain Abnormalities, Mouse Study Suggests


• Solar System's Youth Gives Clues to Planet Search


• New Species of Hero Shrew Found in Equatorial Africa: Most Bizarre Mammalian Spine on Earth


• Coastal Antarctic Permafrost Melting Faster Than Expected: Arctic-Like Melt Rates Appearing in Coastal Antarctica


• Atmospheric Rivers Set to Increase UK Winter Flooding

Posted July 23, 2013:

• Wave of Blue Fluorescence Reveals Pathway of Death in Worms


• NASA's Spitzer Observes Gas Emission from Comet ISON


• Valley Networks Suggest Ancient Snowfall on Mars


• Purple Bacteria on Earth Could Survive Alien Light


• Harvesting Electricity from the Greenhouse Gas Carbon Dioxide


• Oldest European Fort in the Inland U.S. Discovered in Appalachians


• No Link Between Prenatal Mercury Exposure and Autism-Like Behaviors Found


• Controlling Genes With Light: New Technique Can Rapidly Turn Genes on and Off, Helping Scientists Better Understand Their Function


• Brain Picks out Salient Sounds from Background Noise by Tracking Frequency and Time, Study Finds


• Secrets of Mussels' Clinginess Revealed


• New Record for Cosmic X-Ray Sightings: Exploring Extreme Universe With Rich New Resource


• Environmental Toxins Enter the Brain Tissue of Polar Bears


• Major Cities Often Safest Places in the U.S.


• Devastating Long-Distance Impact of Earthquakes