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- Factories converted from using water power to steam engines heated
with coal
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- Automobiles were introduced around 1900, converting the transportation
fuel from hay and oats to oil
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- People began heating their homes with coal and oil instead of wood
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- These fossil fuels, besides taking millions of years to produce,
may only be renewed after another million years
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- Estimates suggest that some fossil fuels, natural gas and oil, may
run out during this century.
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- Nuclear energy held great promise, but previous disasters, as well
as atomic bombs, convinced many people that nuclear energy was too
dangerous.
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- While supplies are finite, demand has been growing exponentially.
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