(via Growing Underground farms greens in forgotten tunnels below London)
The “world’s first underground urban farm” is set to start selling herbs and salads grown 33 m (108 ft) below the streets of London. Growing Underground is based in disused World War II tunnels. At less than two miles from the city-center, it promises farm-to-fork produce in less than four hours.
from Stowe Boyd http://stoweboyd.com/post/128471627787
