For sale: the world’s most controversial greenhouse. Floor space the size of three football pitches, with excellent views of Arizona’s Catalina mountains through 6500 windows.
The owners of Biosphere 2 are now trying to sell the site of their famous ecological experiment, designed as a prototype for a future space colony. Biosphere 2 was built in the 1980s by Texas billionaire Ed Bass of Fort Worth-based company Decisions Investments. The 1.25-hectare glass terrarium north of Tucson, Arizona, contained miniature rainforests, oceans and deserts.
In 1991, eight people were sealed inside along with animals and some 4000 species of plants, to…
