By the year 2050, nearly 80% of the earth’s population will reside in urban centers. An estimated 10⁹ hectares of new land (about 20% more land than is represented by the country of Brazil) will be needed to grow enough food to feed them, if traditional farming practices continue as they are practiced today. A Potential Solution: farm vertically.
posted by signal on Jun 22, 2005 - 36 comments