
For buildings of comparable size and use, old buildings are almost always the greenest buildings.

At Vermont’s Green Mountain College, students designed and built a chicken coop that helps heat the college farm's greenhouse.

Significant reductions in energy use might not require physical retrofitting.
A few months ago, the city of New York announced it would funnel 20 million Stimulus dollars into the construction of a shopping mall in downtown...
Does a place where you can live, work and play all within easy walking distance of each other sound like a good idea? We we would like to know...

Greater energy efficiency means more money to spend on health care, education, and basics like groceries. And Massachusetts is leading the way.

A new study shows that rivers help cool cities when they need it most, during the hottest hours of the warmest months.

Rather than advertising energy-efficiency features, a leading home builder and solar installer are pitching the effect—no electric bill, ever.