In a bid to grow crops in places lacking fresh water and fertile land, transparent “biospheres” or large air-filled balloon shaped structures have been erected beneath the Bay of Noli, in Savona, Italy as a part of a three year long Nemo’s Garden Project.
These underwater greenhouses are anchored to the sea and keep floating 5-10 meters below the sea surface. On the inside surface of these greenhouses, the water condenses on the roof of the spheres and drips back down to the plants, thus watering them. Simultaneously, the warm and near-constant temperature outside the spheres; nurtures the plants.

The farmers have to dive in the sea and then take care of the plants, swimming from one greenhouse to the other. Four cameras on this underwater site stream back live video. So you can watch these unique and unusual farmers in action, online. There are sensors that collect live data like humidity and air temperature in the greenhouses which in turn can be monitored from a website. Just last week, the first seeds of the season – strawberry, basil, lettuce and beans were planted in these amazing balloons.

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Author: Technology Blog