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The idea behind the Biosphere2 project was to create a self-sustaining ecosystem that mimics nature, with an eye toward colonizing other planets. However, balancing all the ecological inputs proved to be a bigger challenge than all those smart scientists could handle. See: http://en.wikipedia.org/wiki/Biosphere_2
11 months ago on Help Us Shape a Vision for a Healthy Planet
Biosphere2 in Arizona cost about $200 million. It was designed to sustain 8 scientists with a self-contained ecosystem. That's $25 million per capita. The ecosystems of Biosphere 1 (planet earth) support over 7 billion people. By that math, the value of ecosystem services provided by planet earth would be worth $25 million times 7 billion, or $175 quadrillion. We should take good care of such a valuable asset.
PS - The 8 scientists were driven out of Biosphere2 after about 2 years by rising CO2. Fortunately, they were saved by Biosphere1.
Instead of subsidizing Big Oil to the tune of $10 billion a year, let's tax them $10 billion a year and use the money to pay for cleaning up the ocean. But first we have to repeal Citizens United, or we'll never get past the special interests.
1 year, 6 months ago on Help Us Shape a Vision for a Healthy Planet