(Awake, August 12), September 17, 1994, U.S. scientists out of the man-made small Earth.

1994 September 17, 2010, (lsjt.org) once sensation within the United States, "Biosphere 2" the second batch of a total of seven test personnel leave early life in which more than six January artificial Earth. in Tucson, Arizona
"Biosphere 2" 55 km northeast of the desert. 17, when the second batch of officers to leave this artificial small Earth, are showing good nutrition, good health status, with the average weight per person in a period of two years, a decrease of more than 11 kg, the first batch of officers had appearances presented The gaunt, haggard face stark contrast. (L $ dj��.����T)
Today, the overall goal of "Biosphere 2" has also been translated into the study of the environment of human life on Earth, including high carbon dioxide content of the unfavorable conditions happens shift became help determine the Earth The trend of rising atmospheric carbon dioxide levels most favorable to the potential impact of human factors.