Discarded Christmas trees will be transformed into plant food, biofuel, and carbon sinks—but that’s just the beginning.
Upgrading cranky, ancient systems could be one of the largest single opportunities to cut building emissions.
The city plans to wean its homes off domestic natural gas by 2050, starting now.
Can thermal storage break the urban air-conditioning feedback loop?
After devastating flooding in 2012, the New Jersey city is racing to develop its own backup power supply.
City leaders across the globe would do well to pay attention.
Electronic displays, texts, and social media blitzes will all feature.
Temperature control in the workplace is about to get way more personal.
“Sure House,” designed by the Stevens Institute of Technology, just won the Department of Energy’s Solar Decathlon.
The environmentally friendly lights can also dim at times to save energy.
The planned Swansea Bay Tidal Lagoon in the U.K. is poised to become one of the most innovative power plants ever constructed.
A big part of the answer appears to be diesel fuel.
The state's Commute Trip Reduction program is a model for the nation.
How some urban zoos are turning brown into green, in more ways than one.
U.S. households use more energy for A/C than the rest of the world combined. But that's changing, fast.
Critics of London Mayor Boris Johnson's ambitious air pollution plan may be missing the bigger picture.
Ideas for rules that balance a building’s historic character with the need for green energy.
If sign-less intersections reduce collisions, they almost certainly also consume less energy.