A new tool visualizes green roofs on any building, and the water and energy they could save.
Thanks to Swedish designer Ola Giertz, the stuff that sprouts from your head now can be a place to rest your butt.
Cities in developing countries will see waste management challenges skyrocket as they continue to grow.
Colorado is having its worst forest fire season in decades. Is climate change to blame?
How increasing CO2 in the atmosphere will affect the songs of birds.
The way we grow could have a major impact on water quality in the future.
Imagining a guidebook for the city in 2025.
Witness the evolution of NYC's billion-square-foot roofscape in the face of climate change.
Brazil's Curitiba was once a model of sustainable planning. Now, it's struggling with a slew of urban problems.
According to a new report, governments in Latin American and Canada are doing the most, American cities come in dead last.
A new reports argues that plentiful vacant land in Youngstown can create jobs and money.
Bike infrastructure is changing, raising new questions about the best design.
According to new research, coastal forests greatly reduced the impact of the Japanese tsunami.
When designed the right way, a BRT line can be a smart alternative to more expensive modes of public transit.
A "third space" that encourages socialization, its easy access reduces emissions as well as drunk driving.
The fabled home of California's redwoods has the worst air quality of any national park and is full of mysteriously crippled wildlife.
Seattle is building one of the country's biggest rooftop planting spaces.
200 riders peddled from New York to Washington on the annual Climate Ride.
Researchers are already at work turning toasty asphalt into energy cities can actually use.