How PPAs – purchase power agreements – work
A current map of the U.S. shows an odd fact: that the number of solar kilowatt hours being produced by state does not correlate where the...
Straw, mud and pumice as building materials (very green!)
A lot of what we now consider green building materials and practices really go back to the days when, prior to mechanical air...
Net-zero luxury homes – They're possible and instructive
Marc Rutenberg Homes is proving that net-zero-energy homes are possible -- in Tampa, in a luxury format, with 4,000 - 7,000 square feet...
Philly's Ridge Flats a large-scale net-zero development
The prevailing thinking is that ultra-green building requires expensive and exotic technology. But developer Onion Flats is figuring out...
Office extension a vegetated roof
OK, so the idyllic weather in Mountain View, California has its advantages – which include team meetings or solitary "think space" on the...
Chicago's "Complete Street" takes on heat, stormwater, blight and unfriendly traffic
With 23 percent of Chicago's land area dedicated to the public right-of-way (streets and sidewalks), those hard surfaces play a huge...
Green schools foster new learning in math, science, reading, nutrition and gym
At least 14 million American children attend schools where the district has green building policies, including those with LEED-certified...
Building to educate – and to protect a wetland
Florida is now the second most-populous state in the U.S. More people moving there naturally threatens the state's rich native habitas,...
Herman Miller's Design Yard rethinks the office workplace
Famous contract furniture maker Herman Miller is responding to new ways of working, in wireless offices that favor facetime as a...
New Penn law school allows subterranean sunlight
The new law school building at the University of Pennsylvania, Golkin Hall, needed more space in a tight infill location. So the...