One can imagine life evolving again and again, crashing on the rocks of time and circumstance, until finally it hit upon just the right mutation rate—one that eons later would produce organisms and species and ecosystems.
Parents worry about plenty of things when they send their kids to school: first- day jitters, making friends, bullying … But exposure to toxic chemicals isn’t usually on the list of “back to school” worries. Perhaps it should be, though....
For many people, especially in parts of Europe and North America, the answer to "When will I get my water next?" is as simple as, "When I turn on my tap." But for three billion others around the world, the answer is much more comp...
WDBJ7 VDGIF's largest-ever stream restoration project begins on Maury River near ... WDBJ7 More than 2,100 feet of the river will be restored and stabilized so sediment deposits and nutrient pollution will be decreased.
Ghana contains forests that are biologically unique and important both for the wildlife they contain and the human communities that depend on them. However, the country is experiencing one of the greatest rates of deforestation in West Africa.
PITTSBURGH (AP) — The state Department of Environmental Protection has officially determined that drinking water at a third residence is contaminated by WPX Appalachia LLC's leaky Marcellus Shale gas drilling wastewater impoundment near Stahlstown, Westmoreland County.
Scientists have long known that mercury is a potent toxicant: It disrupts the architecture of human brains, and it can change birds’ behavior and kill their chicks. But after extensive research in Virginia, scientists have shown that mercury also alters the very thing that many birds are known for – their songs.
Emitted by the burning of coal, mercury in the atmosphere has quadrupled since the days before industrialization, according to a recent study published in Nature. And the amount of methylmercury in animals throughout much of the world is rising, too.
The ice of Antarctica doesn’t faze birds. Nor does the heat of the tropics. They thrive in the desert, in swamps, on the open ocean, on sheer rock faces, on treeless tundra, atop airless mountaintops and burrowed into barren soil.
Some fly nonstop for days on end. With just the feathers on their backs, they crisscross the hemisphere, dodging hurricanes and predators along the way, pinpointing scarce food, tracking down safe resting places, arriving unerringly at a precise spot, year after year.
Philly.com Project to restore N.J.'s marshes uses new method: Spraying mud Philly.com Though they may seem little more than smelly ooze, marshes provide valuable habitat, protect water quality, and serve as fish nurseries.
WASHINGTON (AP) — Global warming is here, human-caused and probably already dangerous — and it's increasingly likely that the heating trend could be irreversible, a draft of a new international science report says. The Unit...