Ready to roll

Washington, D.C., launches the nation's largest bike share program

Capital Bikeshare is the largest such program in the United States to date. Maybe someday, it'll be as popular as the ones in Europe. Hey, we can hope.

Take it with a grain of pharmaceutical salt

Water treatment plant yields gourmet drug-infused seasoning!

You can now sprinkle hand-harvested salt from San Francisco Bay on your food -- if you dare.

School Daze

If we want kids walking to school, grown-ups have to get a move on

Recent research suggests that the simple act of walking to school can reduce children's stress levels and improve their lifetime cardiovascular health. So why don't more parents do something to make it possible?

They love to ride their bicycles

Women on bikes take to the streets of New York City [VIDEO]

In this new Streetfilms video, some of New York's freshly minted women bikers explain why traveling on two wheels is so liberating. And so damn fun.

park your asphalt on the grass

PARK(ing) Day 2010 liberates parking spots for human use [SLIDESHOW]

Today is PARK(ing) Day. In some 140 cities around the planet, humans are taking back some space from cars, using parking spots as mini parks where they play games, do art projects, or just sit …

leak house

How to find an energy efficient mortgage

Energy efficient mortgages are a potentially transformative tool that rewards homebuyers with well-sealed houses, on the thinking that if your heating and cooling bills are low, you'll have more money to make mortgage payments. A …

The city beautiful

Cities lead the way in action to halt climate change

The world's cities -- home to more than half of the human population -- are leading the way to a low-carbon future.

Unsafe at any speed

Virginia man is murdered after dispute over traffic calming

Stephen Carr wanted his street in suburban Virginia to be safer. He lobbied the state to have a speed hump installed. He was successful. And it may have gotten him killed.

Tunnel vision

New Jersey officials call temporary halt to new work on vital rail links

About 45 million New Jerseyans rode N.J. Transit trains last year. Does N.J. Gov. Chris Christie care about the future of the system that serves them?