The Bloom Box 60 Minutes segment has sparked interest, and the device has potential to be a game-changer. But the challenge of developing an affordable, reliable fuel cell has been around for a century, experts say.
A monthly discussion with notable experts.
British retailer displays 'carbon footprint' label on everyday items. US retailers are hesitant to follow.
Clean energy work is a rapidly growing industry, but critics say it's no panacea for unemployment.