Giant hogweed - known to cause blisters, blindness, and scars that last for years - is cropping up in New York.
Per-capita water use has declined in 100 communities that depend on the Colorado River, the primary source of freshwater to much of the southwest. But as populations expand, overall water consumption is still climbing.
A 20-year ban on new uranium mining, covering 1 million acres near the Grand Canyon, is the likely outcome of a two-year-plus review process, Interior Secretary Ken Salazar announced Monday.
A $2 billion restoration effort may help rehabilitate Lake Michigan and the other Great Lakes, but environmentalists say it may be too late to reverse four centuries' worth of damage.
Many studies have documented the West's declining snowpack. But a new one, published Friday in the journal Science, covers the length of the Rockies over an 800-year period.
Even as the Wallow fire threatens to alter the Arizona landscape for a long time to come, some scientists say climate change may be fueling a trend toward larger wildfires in the American West.
'Medo' is an abandoned baby brown bruin rescued by a family in Slovenia. Now they want to keep him, much to the chagrin of local animal experts.
A controversial oil-sands pipeline operated by a Canadian oil company was ordered shut down Friday on charges that its continued operation would be hazardous to lives and the environment.
A UN agency reports that as the global economy began to recover from the recession, carbon emissions surged to a new record, imperiling measures to contain global warming.
Deconstruction of a home to reuse or resell its materials is gaining popularity as a more environment-friendly alternative to demolition. Sometimes it even saves money.
Habitat destruction drives species extinct more slowly than previously thought, according to a new model described in this week's Nature. 'We have bought a little time for saving species,' says scientist.
As the developing world becomes more middle class, will traditional frugality trump the pollution that goes along with more consumption?
A Duke University study finds high methane levels in ground water near where fracking, or hydraulic fracturing, has occurred. Fracking is a controversial practice to extract natural gas from shale.
A lot of people have opinions about climate change, but do they really know what they are talking about? Test your knowledge with this quiz.
Companies like Apple provide the cloud computing that has become a birthright in the digital age. But our insatiable demand for data has a steep environmental price tag.
Are you making environmental choices in order to save the planet or because you want to be seen with a green halo? A new study by economic researchers Steven Sexton and Alison Sexton suggests that some people purchase products that are perceived as environmentally friendly as a way of increasing their social standing. They found, for example, that the unusually shaped Toyota Prius hybrid was a conspicuous badge that sold better in “green” communities than in other communities, all things being equal. “Consumers are willing to pay up to several thousand dollars to signal their environmental bona fides through their car choice,” wrote Sexton and Sexton. Are you a “conspicuous conservationist”? Take our quiz to find out. (Note that our quiz will label answers that conspicuous conservationists would give as "Correct!" and all other answers as "Incorrect!"
One year after the Deepwater Horizon blow-out began the worst oil spill in US history, scientists continue to investigate the effects of the oil and its residues.
Obama administration must decide by midsummer whether to extend a freeze on uranium mining claims near the Grand Canyon. A recent report cites 10 national 'treasures' at risk.
A congressional report finds that chemicals used in 'hydrofracking' to extract natural gas are known or possible human carcinogens, regulated under federal environmental laws.
Solar power is generated by photovoltaic cells, but two scientists are exploring different materials that could foster voltage from light's magnetic effects.