Startup is developing kelp farms in the open ocean to make carbon-neutral biofuel

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Could a robotic kelp farm offer a cleaner fuel that could be used in cars or airplanes? Startup Marine BioEnergy will soon begin testing their kelp elevator, a kelp farm that can move up and down in the water with the help of drones to best access sunlight and nutrients, near Catalina Island in California. They think using the kelp, they could make a biofuel that’s cost-competitive with fossil fuels.

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Midwest greenhouse heated with geothermal energy produces citrus year-round for $1 per day

Those who live in the Midwest understand how difficult it can be to eat local during the wintertime. For Russ Finch and his local community, the task isn’t too difficult as the former mailman designed a geothermal greenhouse in the state of Nebraska that produces lemons, grapefruit-sized oranges, green figs, and grapes — and all for just $1 a day.

https://youtu.be/IZghkt5m1uY

Finch calls the structure the Greenhouse in the Snow. The original, which he constructed more than 20 years… View full post on Inhabitat – Green Design, Innovation, Architecture, Green Building