History - Modern Marvels : Renewable Energy:
In the young 21st Century, two realizations are dawning
on the world's population: we are hopelessly dependent
on petroleum, which is only going to get more expensive;
and global warming, caused mainly by our burning of
fossil fuels, will impact civilization in ways that
we're only beginning to grasp. Stepping in to fight
both of these massive problems are the rapidly evolving
technologies that harness renewable energy. We will
see how air, water, earth, and fire are transformed
into clean, reliable sources of heat, electricity, and
even automobile fuel. We'll take an in-depth look at
the most proven and reliable sources: solar, wind, geothermal,
biofuels, and tidal power. From the experimental to
the tried-and-true, renewable energy sources are overflowing
with potential... just waiting to be exploited on a
massive scale. And unlike fossil fuels, they'll always
be there.
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