| Fibers in a Cave Point to Ancient Craft Work Archeologists looking for signs of what the ancient climate was like in the Caucasus Mountains have come across something else: signs of ancient craft work. nytimes.com |
Sinking Global Warming: Is There a Reliable Way to Track Atmospheric Carbon Dioxide Levels? The planet soaks up excess carbon dioxide via oceans, plants and soils, among other natural systems, locking away some of the greenhouse gases emitted by burning fossil fuels . In fact, every year these natural "sinks" absorb a larger and larger tonnage of emissions--but thanks to the increasing amount of CO 2 and other greenhouse gases dumped in the atmosphere by human activity, the proportion that is reabsorbed is beginning to dwindle, according to new studies. [More] rss.sciam.com |
Welcome to Atlantis and the quest for nitrogen Editor's Note: Journalist and crew member Kathryn Eident and scientist Jeremy Jacquot are traveling on board the RV Atlantis on a month-long voyage to sample and study nitrogen fixation in the eastern tropical Pacific Ocean, among other research projects. This is the first blog post detailing this ongoing voyage of discovery for Scientific American.com. 20 00.0457S x 084'59.9745W [More] rss.sciam.com |
Gulf Spill Clean Up Chemicals May Cause New Environmental Concerns The chemicals BP is now relying on to break up the steady flow of leaking oil from deep below the Gulf of Mexico could create a new set of environmental problems.Even if the materials, called dispersants, are effective, BP has already bought up more than a third of the world’s supply. If the leak from 5,000 feet beneath the surface continues for weeks, or months, that stockpile could run out. [More] Gulf of Mexico - BP - Oil - Environment - Oil spill rss.sciam.com |
Tinker Joys: DIYers Turn Inspiration into Everything from Bamboo Bikes to Urban Rooftop Cosmic-Ray Detectors [Video] The do-it-yourself (DIY) movement, which has been steadily gathering momentum over the past decade, was on full display this weekend in New York City. The World Maker Faire--New York, held at the New York Hall of Science, was a celebration of makers--individuals and teams that embody the scrappy inventiveness of DIY culture. [More] New York City - Maker Faire - New York Hall of Science - New York - United States rss.sciam.com |