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Codec: AVC / h264 (32.8 Mb/s)
Resolution: FullHD (1080p)
#English: DTS-HD Master Audio 5.1
In 1991, eight people voluntarily isolated themselves in a self-built structure they called Biosphere 2 (Biosphere 1, they believed, was our planet). Inside the structure, they had all of the Earth's ecosystems, and spent two years there, documenting every day of their lives on camera and trying to sensitize the world to environmental issues.