Posted Mon Jun 1, 2009 07:09 AM ET
Fossils of three-toed dinosaur tracks found in both Wyoming and Scotland have sparked an intense study to see if they are from the same species. Read more

Posted Sun May 17, 2009 08:07 PM ET | 0
Some hard decisions, including sacrificing undisturbed lands, need to be made to move solar power ahead and stop global warming. Read more

Posted Sun May 17, 2009 08:04 PM ET | 0
Solar power plants should not be build in undisturbed lands when so many other places would work better, says Daniel Patterson. Read more

Posted Thu Sep 18, 2008 05:13 AM ET
The first-ever population count for kangaroo rats, an environmental bellwether species, will be taken from outer space. Read more

Posted Tue Jul 29, 2008 09:18 AM ET
Aerial photos of tracks left millions of years ago are helping scientists understand dino behavior. Read more

Posted Thu Jul 24, 2008 06:32 AM ET
Hundreds of feet beneath Earth's surface, a few seasoned cave explorers venture where no human has set foot. Read more

Posted Tue Jun 17, 2008 05:27 AM ET
A newly discovered batch of well-preserved dinosaur bones, petrified trees and even freshwater clams in southeastern Utah could provide new clues about life in the region some 150 million years ago. Read more

Posted Wed Apr 23, 2008 05:37 AM ET
Waterways in every region of the country will eventually be affected by water pollution or overconsumption, say experts. Read more

Posted Fri Apr 4, 2008 05:30 AM ET
Scientists cart desert tortoises to new habitats to make room for army training in the Mojave Desert. Read more

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