FUKUSHIMA, JAPAN - NOVEMBER 30: Packs of lettuce harvested from Panasonic Corp.'s plant factory are displayed for sale at a supermarket on November 30, 2016 in Fukushima, Japan. One of Japan's largest electronics companies, Panasonic opened the factory to the media today. The factory helps to achieve stable production of vegetables by industrialising agriculture with its environmental control technologies and knowledge on factory management, according to the company. (Photo by Tomohiro Ohsumi/Getty Images)

FUKUSHIMA, JAPAN - NOVEMBER 30:  Packs of lettuce harvested from Panasonic Corp.'s plant factory are displayed for sale at a supermarket on November 30, 2016 in Fukushima, Japan. One of Japan's largest electronics companies, Panasonic opened the factory to the media today. The factory helps to achieve stable production of vegetables by industrialising agriculture with its environmental control technologies and knowledge on factory management, according to the company.  (Photo by Tomohiro Ohsumi/Getty Images)