Dirty data: Apple has the least-green data centers, says Greenpeace

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.

Nitrogen in gasoline: Does it cause pollution?

Some oil companies are adding nitrogen to their gasoline. But does it cause pollution as well as boost performance a bit?

California adopts first statewide green building code

California's building commission adopted the first statewide green building code this week. Environmental groups welcomed the new standards, which mandate water use reductions and waste recycling in new buildings, but were critical of its rating system.

Earth's growing nitrogen threat

It helps feed a hungry world, but it's worse than CO2.

California garbage trucks fueled by ... garbage

Methane gas produced in California landfills fuels garbage and recycling trucks, reducing the state's carbon emissions.

Americans' attitudes toward the environment aren't reflected in action

About 60 percent of Americans feel a 'great deal' or 'a lot' of personal responsibility to protect the environment, but that attitude isn't necessarily reflected in day-to-day actions.

Joel Salatin advocates a better way to raise food

Farmer/lecturer Joel Salatin champions 'moral farming' as a better way to raise food. 'What is a moral way to raise a chicken?' he asks.

New Orleans in the forefront of a green building revolution

Hurricane Katrina provided New Orleans with the opportunity to be part of an environmental revolution and rebuild its houses, schools, and neighborhoods in a green, sustainable way.

Americans are getting better at water conservation

Americans are using less water than they did 50 years ago, thanks to conservation measures.

A green home that saves the green

A century-old farmhouse gets a green home renovation – on a budget.

'No impact man' after a year doing without -- what now?

To reduce its environmental footprint, No Impact Man and his family did without toilet paper, elevators, TV, and cars for a year. What did they learn?

Invasive plants -- from pest to pesto

Foodies learn to sink their teeth into plants that are better known as weeds.

Earth Talk: Why are US rail options limited compared with Europe?

The US has the lowest rate of intercity rail usage, but Congress is taking steps to change this.

Environmental education goes global

Long-established Shelburne Farms program in Vermont sends out ripples worldwide.

Guilt-free sushi

Environmentalists tout sustainable fish for the dish.

Earth Talk: Can you recycle your old mattress?

Earth Talk: Who’s building places to charge plug-in cars?

Finding a place to plug in an electric car – and what it will cost.

Earth Talk: The most energy-efficient way to heat a cup of water

When choosing among the microwave or a gas or electric stove top, the answer may surprise you.

Grilling with gas or charcoal: What’s better for the environment?

Green Stuff: Eco-news and discoveries

A wake-up call on water use

A long-running resource issue finally trickles down to more consumers.