Fri, Apr 08, 2011 at 12:14 PM
The U.S. has more tornadoes than anywhere else on Earth, but their sudden twists and turns still make them mysterious and mesmerizing.
Mon, Apr 04, 2011 at 1:15 PM
Every U.S. state is No. 1 in some environmental category ... and No. 50 in another.
Mon, Mar 28, 2011 at 2:42 PM
These states are showing incidence of numerous types of cancer, birth defects and other chronic illnesses.
Mon, Mar 14, 2011 at 1:30 PM
It's climate-friendly and creates jobs, but as the U.S. reconsiders atom smashing, old worries about nuclear waste, meltdowns and price tags persist.
Tue, Mar 08, 2011 at 8:51 AM
The Southeastern U.S. has been dubbed both the 'stroke belt' and the 'diabetes belt,' according to government researchers.
Mon, Mar 07, 2011 at 2:29 PM
Wastewater storage from fracking may be causing earthquakes. For now, Arkansas is stopping operations.
Mon, Feb 07, 2011 at 10:57 AM
Why does this small Arkansas town keep shaking? Townspeople look for a cause.
Thu, Jan 06, 2011 at 9:57 AM
U.N. Environment Program urges more research into baffling deaths — from why whales sometimes beach themselves to recent bird deaths.
Thu, Jan 06, 2011 at 9:52 AM
Video: At least 50 dead birds turned up in Sweden on Wednesday, days after similar events took place in Arkansas and Louisiana.
Wed, Jan 05, 2011 at 9:52 AM
Up to 100 jackdaw birds were found lying dead in a snow-covered street in Sweden Wednesday, and five have been taken in for analysis.