A native California frog once on the brink of extinction is making an encouraging comeback in Yosemite National Park, raising hopes for amphibians like it worldwide that are dying off at an alarming rate, researchers said ...
Google and Microsoft said Friday they plan to join Apple in offering theft-deterring "kill switches" in their smartphone operating systems, as part of an agreement with mayors and police agencies.
The oil and gas industry is trying to ease environmental concerns by developing nontoxic fluids for the drilling process known as fracking, but it's not clear whether the new product will be widely embraced by drilling companies.
Security flaws in voting technology in a number of US states could taint the outcome of the 2012 election, a study concluded Wednesday, saying it was "highly likely" some systems will fail.
California is taking its fight against global warming to the farm.
The Connecticut Audubon Society has released a sharply worded report, warning that many birds in the state are suffering slow, steady population declines because of a loss of nesting areas.
Two Philadelphia universities—one specializing in health care and the other in design—have agreed to merge.
The FBI is warning state officials to boost their election security in light of evidence that hackers breached related data systems in two states.
Facebook on Monday dismissed complaints by German officials that it had not been helpful in fighting terrorism and urged authorities to better formulate their requests.
New data on air pollution from fracking wells in Colorado will be a big help in assessing whether the emissions are harmful to human health, state officials say.