Home to several small-scale food businesses, The Plant Chicago is a net-zero, closed-loop urban farm

A harsher economic environment for renewable power is inspiring the industry to toughen up

Stunning photos of Earth from space by the Canadian astronaut

Backward thinking poses a threat to a wind-energy tax credit that's helping to wean the country off fossil fuels

The Nature Conservancy forges surprising partnerships to further its mission

So why are we treating it so badly?

More and more countries are tapping powerful ocean winds for electricity

How America can save money and stop wasting less food, water and energy

Clear polymer solar cells could cover skyscrapers and tablets

This serene property in Glassell Park seems a world away from Los Angeles