AlgaeLamps.com

An innovative lamp powered by algae has the potential to absorb up to one tonne of CO2 every year, which is as much as a single tree absorbs over its entire lifetime.

The lighting system, requires no electricity but instead draws carbon dioxide from the atmosphere and produces an illuminating glow thanks to algae.

Algae produces energy from both sunlight and carbon dioxide, while creating carbohydrate energy to feed itself. That the algae can survive on carbon dioxide alone means the lamps could be placed in areas without natural light and they will still function.