Dr Dickson Despommier on vertical farming

The father of the vertical farming movement is Dr. Dickson Despommier. He's a former Columbia University professor of microbiology and public health. In 2010, he published "The Vertical Farm: Feeding the World in the 21st Century" which was recently translated into Mandarin Chinese. Karina Huber sat down with him first asked about what he sees as the greatest feature of vertical farms.