A state-by-state breakdown of policies that could change your community.
Scientists are still working out why some species are more likely to die out than others.
Nearly 10 percent of U.S. bridges are considered structurally deficient.
Houston's record-breaking rain can be traced back to atmospheric changes.
The recent State of Emergency declared in Florida is just the latest in a long history of troubles
Air: It's one of the world's most important, least understood, and possibly life-saving substances
Progress in Ebola Vaccine Trials Suggests We May Soon See The End Of Ebola Epidemics
Mike Biddle could free the world from having to make new plastic. Forever.
Ten amazing projects built by teens.
Last May, a massive tornado leveled Joplin, Missouri. Was it chance, or a warning of things to come?
Your cellphone does not in itself cause cancer. But in the daily sea of radiation we all travel, there may be subtler dangers at work, and science is only just beginning to understand how they can come to affect people like Per Segerbäck so intensely
The world's most prestigious universities have begun posting entire curricula on the Web—for free. Is there such a thing as a free higher-education lunch? I enrolled to find out
Around the world, scientists are risking their lives to retrieve seeds destined for a massive vault near the North Pole. Their work just might save mankind
The most promising new treatment for severe depression isn't a pill. It's a permanent implant that shocks the brain. Is this what joy looks like?
Looking for a clean fuel that grows anywhere, needs only sunlight and water, and could produce enough oil to free the U.S. from its petroleum addiction? Here´s one start-up's plan for converting oil from algae-yes, algae
We'll get a vaccine for addiction, debate the future of nuclear power, use new tech to take on water shortages, and-just maybe-find an extra dimension or two. Happy New Year
Geographic profiling pioneer Kim Rossmo has been likened to Sherlock Holmes; his Watson in the hunt for serial killers is a digital sidekick -- an algorithm he calls Rigel.
Will Marc Norman's secret ice recipe set speed skating records in Salt Lake City?