These photosynthetically active algae absorb carbon dioxide and store it as energy-rich oils, which researchers then ...

Carbon fibers are essential in aviation, wind energy, and lightweight construction. However, since they are based on petroleum, their production has ...

Montana comes in second, with 37 percent of its trails deemed exhausting or dangerous. One standout: Apgar/Huckleberry Lookout Trail in Glacier National Park, which attracts grizzly bears.