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Unformatted text preview: adapt to any new environments. In contrast, naturalists believe that humans have
perfectly adapted to our environment through millions of years of evolution, but that we are now rapidly
destroying that environment. Our genes prescribe that we can be happy only when we live in our original,
natural environment. Habitat selection, a basic principle of organic evolution, states that species prefer and
gravitate to the environment in which their genes were assembled. Thus, we are completely dependent on our
environment, including other species, and we must take steps to preserve the ecosystems that support us xi.
Exemptionalists argue that technology can provide a substitute for nature. However, scientists and
engineers have tried to build a closed, self-supporting system and failed miserably. Biosphere 2 taught us that
we cannot engineer sustainable life support systems for human communities; only earth and its ecosystems can
keep us alive. Biosphere 2 is a 3-acre structure built in Oracle, AZ between 1987 and 1991. Scientists designed
it to be a sustainable, self-contained ecosystem that could support...
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This note was uploaded on 01/08/2014 for the course SUST 510 taught by Professor Marker during the Fall '14 term at Black Hills State University.
- Fall '14