Subscription Center
The twister that struck Moore, Okla., was the deadliest U.S. tornado since one killed 161 people in Joplin, Missouri, two years ago
The rules will save $90 billion in healthcare costs by 2016 as technology to cut emissions also reduces particulates that can damage hearts and lungs
Mindinao Island is not normally in the path of typhoons. "We need to educate people with this kind of change in climate," says the Philippines National Red Cross secretary-general
Critics question the announcement, but a cold shutdown is when water used to cool nuclear fuel rods remains below boiling point, preventing the fuel from reheating
The nation aims for 100 GW in wind power capacity by 2015. It had just 1 GW solar capacity by the end of 2010
A panel called for systematic safety management and redesigned rig blowout preventers
"Whether it's a tipping point and it will never recover, who can say? But we have a new normal...," a climate expert says
The estimated 46 mountain caribou in the Selkirk Mountains, which bridge the U.S./Canada border, are all that remain in the country
See what we're tweeting about
BecCrew I have no idea what this means but I love it so much http://t.co/NA5WMMApWS
DNLee5 #DispatchesDNLee: Non-target capture Marsh Mongoose: http://t.co/h6iOKMW63v via @YouTube
Horganism Ahab to severed whale head: O head! thou hast seen enough to split the planets and make an infidel of Abraham and not one syllable is thine!
Deadline: Aug 31 2013
Reward: $100,000 USD
The Geoffrey Beene Foundation Alzheimer’s Initiative (GBFAI) is launching the 2013 Geoffrey Beene Global NeuroDiscovery Challenge whose
Deadline: Jul 30 2013
Reward: $100,000 USD
The Seeker desires a method for producing pseudoephedrine products in such a way that it will be extremely difficult for clandestine che
Powered By: 
YES! Send me a free issue of Scientific American with no obligation to continue the subscription. If I like it, I will be billed for the one-year subscription.
