
With a footprint of about 65 square feet, each SkyGreens tower is ten times as efficient per unit of land than conventional farming methods. Photo by Sam Eaton.
A new super-efficient vertical farming system is producing greens for Singapore’s 5 million residents. Inventor Jack Ng hopes to increase local food security while helping cut down on the climate impact of food production.
A video version of this story aired on PBS NewsHour.