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This is the only Earth we'll get.
Most environmental changes are subtle and may seem inconsequential,
but have profound effect over the long-term. Even the smallest change
affects our ecosystem because we live in a closed environment where
every process is interdependent, and every molecule is 'recycled.'
Conservation is important on both a micro (individual), and macro
(world) level. As individuals we make choices every day that cumulatively
impact our environment. The effects can be neutral (a good thing,
as Earth historically maintains a balance when left on its own), or
can degrade our environment.
Resource use in the US is disproportionately high as compared to other
countries.
Bigger is not better when it impacts resource use and increases pollution.
According to one study, if we improve the average gas mileage of all
our vehicles by 7mpg, dependency on foreign sources of oil would be
eliminated. Better yet, if we focus on developing (and utilizing)
alternative fuels now, we'll be less catastrophically affected
as oil reserves become depleted.
Significant climate changes have taken place several times during
Earth's 4.5 billion year history, but none were caused by its inhabitants.
Pollution and global warming is entirely humans' creation, and the
risk is that changes happen too fast for compensatory adaptation by
the environment and humans who depend on it.
Extinction has been a regular occurrence on Earth since the beginning;
species come and go, but one scientist estimated our current extinction
rate at 120,000x the average over Earth's history! We seem
technologically in control of our fate, yet still entirely dependant
upon our environment to survive. Perhaps technology's rate of advance
exceeds our ability to understand its long-term consequences. |
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