Biosphere 2 is an eight story steel and glass world set in the high desert country of southern Arizona that cost $200 million to build. Construction of Biosphere 2 (so named because its creators viewed Earth as Biosphere 1) began in 1984, financed by Edward P . Bass, the Texas businessman. The aim was to have human inhabitants thrive in a miniature world made of a sea, savanna, mangrove swamp, rain forest, desert and farm; the areas and atmospher

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