To verify and independently assess air quality not far from the Bird's Nest stadium, the Associated Press has begun monitoring and publishing air quality data and associated photographs. They update this interactive feature daily.

Rarely do social entrepreneurs launch new charities with much success, but R Community Bikes happens to fulfill a need by bringing together volunteers with a specialized skill, some money for spare parts, and a never ending supply of frames and broken...

From her base in Oakland at an ecologically-oriented cooperative complex with beehives and rainwater catchments, Kachina Katrina Zavalney campaigns to convince Burning Man organizers to shoulder more environmental responsibility.

Humans anthropomorphize and tend to recognize intelligence similar to their own.

Architects and urban planners make pilgrimages to Curitiba to learn how it became what many call the greenest city in the world. There nearly every family has a car, but only a third of them commute by car. The rest use the bus, voluntarily.