Could your trashcan solve the energy crisis? - tech - 22 April 2009 - New Scientist

Description

AT FIRST glance, 303 Bear Hill Road in Waltham, Massachusetts, doesn't look like the scene of an environmental revolution. But packed into a shipping container in the car park of this modest suburban commercial building is a compact piece of technology that its maker IST Energy insists can turn even the filthiest waste into clean, green energy. "Trash will move from being a liability to an asset, providing a clean source of energy that can be used right where it is produced," says Stuart Haber, the company's CEO.

IST is not alone in this revolution. It is one of a growing number of companies and research groups around the world working on gasification - a process that zaps household waste into energy and which, its advocates say, produces few or no harmful emissions. Yet as pilot gasification plants begin to spring up around the world, this apparent environmentalist's dream is not being universally welcomed. Opponents argue that the process is far from clean and that its track record in terms of energy efficiency and emissions can hardly be considered green. Not to mention the fact that it encourages the throwaway society that the environmental movement has been trying so hard to get rid of. So what is the real story? Is vaporising trash the answer to our energy and waste-disposal woes, or an environmental wolf in sheep's clothing?

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