Cities

No parents allowed

This playground encourages kids to use tools, get dirty, and let their imaginations run wild

The "adventure playground" trend hits New York City.

oh snap and dividend

California cap-and-trade program faces major hurdles

State lawmakers passed an ambitious climate bill, but it might be undermined.

coke zero, berkeley 1

Soda tax might be working better than expected

Berkeley residents are drinking about two fewer sugary drinks per week since the tax started, according to a new study.

Human/Nature

Stop a selfie, save a life: Words of advice for the modern wilderness tourist

A little park safety awareness wouldn't kill you.

Human/Nature

The nearest national park could be just a city block away

The folks with trees, mountains, and bison on their badges have decided it’s high time to serve city dwellers.

Human/Nature

Our era’s iconic national park is hidden in New York City

Jamaica Bay is an imperiled swamp nestled next to the biggest city in America -- and it has a lot to teach us.

space invaders

Police are finally catching cars that veer too close to bicyclists

11 cities are using this nifty sonar device to measure the distance between bikes and cars.

News

Louisiana’s flood couldn’t have been stopped, but it didn’t have to be so devastating

A set of canals, levees, and reservoirs that could have staunched Louisiana's floods had been deemed impractical.

Not just idle chitchat

Teens remind NYC drivers: It’s illegal to idle your car for more than three minutes

High-school reporters found lots of New Yorkers breaking a law that’s intended to curb air pollution.