July 24, 2013 Biologists have discovered they can track hard-to-see species in streams, ponds and even the ocean by sampling the water for DNA. Scientists say the technique is an important conservation tool: So far, it's been used to track declining giant salamanders and even locate a rare whale.
July 16, 2013 Biologists who study the lives of animals can learn a lot simply by listening to them. The problem is that natural sounds can be far easier to record than to analyze. So scientists are working to automate the process with automated systems that do the identifying for them.
July 12, 2013 Diplomats from 24 nations and the European Union are meeting in Germany next week to discuss creating a nature preserve that could be larger than three times the size of Texas. Stretches of water around Antarctica are relatively pristine and home to thriving ecosystems.
June 25, 2013 The sweeping plan calls for the Environmental Protection Agency to tighten carbon dioxide emissions on power plants and is designed to foster cleaner forms of electricity. The initiative also aims to help the nation cope with droughts and other weather related changes that are already happening.
June 25, 2013 For the first time, the government plans to limit how much carbon dioxide existing power plants can put into the air. It's a key element of the president's plan, but it's also unclear how aggressive the restrictions will be.
June 6, 2013 Coastal fish farms are a major source of the seafood we eat, but all the fish waste they generate takes a toll on the environment. So a researcher in Canada is trying to clean up fish farms by creating an ecosystem where fish waste gets taken up by other valuable seafood commodities, like shellfish and kelp.
May 18, 2013 Atmospheric scientist Ira Leifer installed special air sensors on a camper, then drove from Florida to California, measuring methane levels all along the way. More than 6,000 readings later, he found some noticeable spikes, especially around petrochemical plants and urban areas like Los Angeles.
May 15, 2013 Fish are moving away from the equator and toward the poles to maintain their preferred water temperature. That means, for example, that fishermen are seeing swordfish normally found in the Mediterranean swimming near Denmark. But in the tropics, there are no fish to replace the ones that are leaving.