The US media giant is going green, and Joel Makower is convinced it's much more than a publicity stunt

Department for Transport pledges £20m for purchase of green vans

Mandatory US emission caps looking more and more likely as Hillary Clinton becomes latest candidate to back cap-and-trade scheme

They might sound like they've read too much Arthur C. Clarke, but firms planning to harness solar power from orbiting satellites insist the technology could be in place within two years

New Offset Quality Initiative promises to promote wider adoption of best practices and push for offsetting regulations

Electronics giant announces it is to launch a new service to cut customers' energy use and push its low energy air conditioners

Purchasing consortium for green products bolsters buying power as Wal-Mart and US mayors join world's 40 largest cities