Green tech finds: weird energy sources

Can you literally breathe new life (or, at least, new power) into your cell phone? How about fill your tank with rotten food? A qualified “yes” to both – your green tech finds for the week.

A street lamp that absorbs CO2: This one’s still a long ways from commercial use, but French biochemist Pierre Calleja has created an outdoor lighting system powered by microalgae that would actually absorb CO2 from the air. So, a great potential lighting source for places like parking garages and roadways. Check it out in the video above.

The big picture on green gadgets: My buying a less toxic, more energy efficient phone or other gadget doesn’t make that much of a difference, right? Probably not, but if many people do, then you’re talking about real impact. Earth911 has published an infographic from EPEAT that illustrates the difference made by millions of people purchasing greener electronics.

London’s green scene a little easier to find now: The Urban Green Line app allows Londoners (and, eventually, others) to find green spots in the city: from green businesses to organizations to events. The app (still in beta) draws a green line on a map between destinations to encourage walking, and allows users to add their own locations. (via Do the Green Thing)

The DIY greenhouse: Ready to get some plants going? Treehugger put together a small collection of greenhouses you can build yourself for cheap. (via @RebelGreen)

A polluted beach: prime real estate? Not in most cases, but it works just fine for a wind farm. First Wind is expanding its Steel Winds installation, located on the former site of a Bethlehem Steel plant on Lake Erie. (via Earth Techling)

Breath power: Nope, it’s got nothing to do with eating onions. Rather, the AIRE Mask concept uses tiny wind turbines to capture the energy in expired air. That energy can be used to charge small electronics. (via Inhabitat)

Power your car with compost: Researchers in Germany are experimenting with turning methane produced by rotting fruits and vegetables into a compressed biogas that could be used to power vehicles. (via Care2)

Find anything weirder? Even if it’s conventional in comparison, please share your finds with us in the comments.


Featured image credit: Screen capture from video above.