Consisting of desert, ocean, rainforest, grassland, and agricultural "biomes", for 10 points, name this large, hermetically-sealed greenhouse in the Arizona desert that was the site of a high-profile "expedition" in the 1990s.
Huxman et al. are using it to study the resilience of Pinon Pine, while another part of it is being used to study the effects of algae on coral. Severinghaus and Broecker used the isotopic composition of part of it to determine the fate of oxygen and carbon dioxide in it.  Conceived by John Allen, Margaret Augustine, and others at the Synergia Ranch, the funding for it was provided by (*) Edward Bass.  Most of its initial research in it was conducted by physician Roy Walford, who found anti-aging evidence as a result of the low caloric intake of the eight people confined in it during the two year first mission.  Consisting of desert, ocean, rainforest, grassland, and agricultural "biomes", for 10 points, name this large, hermetically-sealed greenhouse in the Arizona desert that was the site of a high-profile "expedition" in the 1990s.
Huxman et al. are using it to study the resilience of Pinon Pine, while another part of it is being used to study the effects of algae on coral.
{Biosphere 2} [do not accept or prompt on "Biosphere," as that would be the Earth] (3) [RA]