Walking catfish invade the Everglades, goats on "secret farm" to make human milk, RFK Jr. says hog farmers worse than bin Laden, a tornado chaser gets corporate sponsorship, and the skinny on nanotechnology.
EPA and DOI continue burning Bush's legacy, U.N. wants Obama at March climate summit, why solar power could be unsustainable, and a burned koala befriends a firefighter.
Scotland killing squirrels gone wild, stray dolphins may be earthquake refugees, how ethanol can dethrone oil, why climate change is confusing, Hillary Clinton's China to-do list, and Antarctic sea life loses its cool.
Why global warming could be fueling Australia's fires, Mexico's mysterious disappearing salamanders, Bolivia and the future of electric cars, new clocks more accurate than time, and Google searches for a smarter grid.
Australian fires "devastating" wildlife, global warming not for the birds, examining evolution as Darwin's 200th birthday approaches, cookware linked to female infertility, and how to explain climate change to kids.
EPA checks Illinois oil spill, American trees moving north, Alaskan town left out in the cold, the "promise and peril" of a second Industrial Revolution, going green in hard times, and the rise of citizen scientists.
Photos from the Australian brushfires, airlines go jatropha hunting, Zimbabwe's water and cholera crises, photographer campaigns for polar bears, and how scorpions got their claws.
Climate change may worsen Australian wildfires, oil sludge spills into Illinois river, Exxon Valdez spill still killing, electrical storm looms for U.S. auto industry, and how to bottle up economic grief.
Obama ends Bush's air pollution fight, makeshift city pushes into the Amazon, dogs converted wolves to the dark side, hot-natured algae could save coral reefs, and why cows need names.
Are we evolving into a new species? Could the oceans rise 21 feet? Will ads on wind turbines sell? Also: China declares drought emergency, and five supersized ways to ward off the water crisis.