John Todd developed a process in the 1980s that mimicked natural ways to purify wastewater. Today, his Eco Machines and Restorers are used for a wide range of municipal and industrial applications.

Standing on the roof of a boxy old Buick, Kevin Smith has a great view of the vast boneyard at Kertow Auto Salvage, outside Taylorville, Illinois. He's here looking for the key to America's super-fuel-efficient future. "Found it," he says to me, spying...

A confidential, nationwide list of 24,500 teachers who have been punished for a wide array of offenses was made available to the public Friday by a Florida newspaper.

Now that you've blown your next two years' bonuses on subprime mortgages and homebuilder stocks, you need a recovery strategy. Look no farther. Solar power.

Investing in renewable electricity worldwide instead of burning fossil fuels could save US$180 billion annually and cut emissions of the greenhouse gas carbon dioxide in half by 2030, according to a joint report by Greenpeace and the European.............

The Statoil petrol station in the Stavanger suburb of Forus is on first impressions unremarkable. But if you look carefully, you'll notice that on one side of the forecourt, away from the cars filling up with petrol, is a pump that stands seemingly.......

There was a time when chocolate was an artisanal product created by small European chocolate makers. Craftsmen used cocoa beans gathered from the spoils of their cacao-rich colonial empires in the Americas, and then Africa and Asia, where they'd..........

The average Indian may go through an entire life without contributing a huge amount to the world's production of greenhouse gases, but in death his carbon footprint jumps. Alarmed by the fuel-intensive nature of the funeral rites of Hindus who practice...

The hydrogen economy is not a futuristic concept. The U.S. Department of Energy's 2006 Advance Energy Initiative calls for competitive ethanol from plant sources by 2012 and a good selection of hydrogen-powered fuel cell vehicles by 2020.

The city's yellow taxi fleet will go entirely hybrid within five years, Mayor Michael Bloomberg announced Tuesday.