Traffic planners restrain cars in favor of walking and public transit

Many hope that Lula will restore research funding and environmental protections in the country.

A harsher economic environment for renewable power is inspiring the industry to toughen up

New Bluetooth monitoring device tracks power usage and sends the stats to your smartphone

Project aims to transform LA billboards into aerial gardens

The liberals' favorite conservative reverses stance on global warming, saying the science is "not enough" for U.S. action

It may burn cleaner than coal, but natural gas may be worse for the climate, says study