A state-by-state breakdown of policies that could change your community.
Air: It's one of the world's most important, least understood, and possibly life-saving substances
We've rounded up 2014's most mind-blowing images for your viewing pleasure
Steven Chu, the new U.S. secretary of energy, is a Nobel-winning physicist and an unabashed advocate of fighting climate change. But can he negotiate the political realities of transforming the energy economy?
Arsenic-laced drinking water, lead-contaminated soils and choking air pollution are sadly just the start in some of the world's dirtiest places
A radical new power plant aims to convert our dirtiest fossil fuel into clean-burning hydrogen
When David Hanson set out to build a robotic head, he saw no reason not to make it look just like a human. Then he stumbled into the Uncanny Valley.
Energy: Some say it's too big a job, but scientists would sure like to try.
Simulating the atmosphere does more than just help students learn about the world.
Sampling the metagenome of the air
Plus, a spider species nicknamed “Sparklemuffin”
The best use of tremendous calculating power? Figuring out how easy it will be to breathe today.
Farms are in a "smog panic" as plants falter without sunlight
It's a publicity stunt, but a good one. Chen Guangbiao wants to bring attention to China's air quality problem before it's too late.
"Look at the screen. It must be morning."
A new study finds that trees are fueling air pollution--with a lot of help from humans
Tough luck for frogs, and a guilty conscience for Norsemen
In a simulation, a Titan-like atmosphere produces nearly all of life's building blocks
Maybe. Although some of the ideas aren't pretty
Twirl the globe to see the world's worst polluters.