Biochemist creates CO2-eating light that runs on algae

( – Our atmosphere is filling up with CO2 and we seem to be the major cause of that. The generally accepted solution seems to be cutting back on emissions as quickly as possible, but implementing such cuts is problematic because everyone has to agree to do more, which essentially ends up costing a lot of time and money.

There is an alternative to such measures, though. Instead of relying entirely on cutting emissions, why don’t we start taking CO2 out of the atmosphere? That’s exactly what biochemist Pierre Calleja is trying to do, and his solution almost sounds too good to be true.

Calleja has developed a lighting system that requires no electricity for power. Instead it draws CO2 from the atmosphere and uses it to produce light as well as oxygen as a byproduct. The key ingredient to this eco-friendly light? Algae.

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  • Saw that article. Might work for indoor light but not bright enough for outdoors.
    Not sure I’d want what is essentially an aquarium in my ceiling, but they might be able to put the algae tank anywhere and ‘pipe’ the light where needed using fiber. For example, the chandelier at the Ice Hotel.

    Been looking into Aquaponics.
    Maybe a tank with algae & fish feeding the plants… of three worlds.

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