Harvesting Food Using Just Sunlight and Seawater

Science Nature’s Facebook page informs that there is a farm in South Australia that turns seawater into fresh irrigation water. It grows 17,000 tons of tomato every year. This is 15 percent of Australia’s annual tomato produce.

The farm is built over an arid area close to Port Augusta. But inside Sundrop’s greenhouse, there is no need for fertile soil, as the system grows the plants in a hydroponic way.

Outside there is a 377-foot-tall solar tower with 23,000 mirrors pointing at it. It produces the energy needed to power the desalination plant. The facility is processing 1,000,000 liters’ water per day producing food in an unexpected area without exploiting the planet’s scarce resources.


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