A sealed glass world lost about a third of its oxygen in 16 months. Scientists traced it to soil microbes and concrete.

ORACLE, Ariz. — Plopped in the Sonoran Desert, just outside Tucson, Ariz., sits a massive, multilevel greenhouse that's probably best known as the inspiration for a Pauly Shore movie. A slick, stepped ...

ORACLE, AZ — Four dozen Sonoyta pupfish are now swimming beneath the towering glass pyramids of the University of Arizona’s Biosphere 2 after a multi-year effort to conserve the critically endangered ...

In the early 1990s, eight people agreed to vanish from the world and live for two years inside a sealed glass habitat in the Arizona desert, a kind of fake Earth built to see whether humans could ...

Atmosphere-biosphere interactions play a vital role in regulating the exchange of energy, matter, and gases between the Earth’s atmosphere and its terrestrial and aquatic ecosystems. These ...