The Guardian It sounds like a sci-fi movie, or the weirdest series of Big Brother ever. Eight volunteers wearing snazzy red jumpsuits seal themselves into a hi-tech glasshouse that’s meant to perfectly replicate Earth’s ecosystems. They end up starving, gasping for air and at each other’s throats – while the world’s media looks on.
But the Biosphere 2 experiment really did happen. Running from 1991 to 1993, it is remembered as a failure, if it is remembered at all – a hubristic, pseudo-scientific experiment that was never going to accomplish its mission. However, as the new documentary Spaceship Earth shows, the escapade is a cautionary tale, now that the outside world – Biosphere 1, if you prefer – is itself coming to resemble an apocalyptic sci-fi world. Looking back, it’s amazing that Biosphere 2 even happened at all, not least because the people behind it started out as a hippy theatre group.
“Just the fact that the same number of people came out as went in is a triumph,” says Mark Nelson, one of the original eight “biospherians”.
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