May
07
2012

Mucklights suck up CO2

Carbon dioxide, you light up my life. Or you could, anyway, if this weirdo has his way. Said weirdo is biochemist Pierre Calleja, who has developed a light that can run on carbon dioxide rather than electricity. His secret: green algae that produce energy when they consume CO2.

The mucklight powerhouse: Gross.
The mucklight powerhouse: Gross.Courtesy Jim Conrad

One large lamp he installed in a parking garage consumes up to one ton of CO2 per year. While that's just a drop in the air--the US alone emits almost 5.5 thousand metric tons per year--just think how much these lamps could consume if we replaced all the streetlamps, parking ramp lights, and other environmental lamps with them. It sounds like a pretty great idea when you consider that CO2 is a major driver of global-scale changes in our climate. Whoda thunk we could tackle our warming climate by turning on the lights?

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