Leadership in energy and environmental design practices are becoming part of building codes in cities around the U.S.
Slowing the rise in human numbers is essential for the planet--but it doesn't require population control
Forward-thinking companies, universities and municipalities are finding creative ways to run on renewable power
The melting Arctic is releasing vast quantities of methane. How big is this greenhouse threat? What can be done?
Lester Brown, at times ridiculed, has been warning the world for 40 years about coalescing energy, food and population crises. So why is he optimistic now?
It's not just for tiki torches anymore, but does this wood substitute really make for greener floors, clothing and other products?