We just returned from Florida (to very cold weather unfortunately). One of my favourite tours was through the greenhouses at Epcot.
Living with the Land is a boat ride through three greenhouses that form the Sustainable Agriculture and Research Center at Walt Disney World. In these greenhouses, Disney is experimenting with different growing techniques. An amazing variety of fruits and vegetables are grown either in sand, hydroponically (in water) or airoponically (in air). One greenhouse operates as a fish farm. What is amazing, beyond the scientific techniques, is the size of the produce generated. Disney has partnered with both the U.S. Department of Agriculture and NASA on various projects. In addition to looking for ways to produce crops in famine stricken areas, one project involves developing ways to grow gardens in space for long journeys.