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their right to vote, choose work, and live or even socialize with anyone of the wrong
‘‘race.’’ Fear of the natives’ long-standing political organization, the African National
Congress, encouraged the South African government to imprison and persecute
their leaders, including Nelson Mandela. By the 1970s, in the wake of the American
Civil Rights movement, worldwide criticism and boycotts had somewhat isolated
the racist regime. Still, many Western governments, in the name of Cold War soli-
darity, ignored boycotts organized by human rights groups.
Just as some westerners were concerned about the rights of their fellow
humans, others focused on the ‘‘rights’’ of the planet itself. Since the beginning of
the century, petroleum, usually just called oil, provided the most convenient source
of power. Refined into diesel or gasoline, it was cheaper and easier to use than coal.
Natural gas, a by-product of drilling for oil, also found numerous uses because of
its extreme efficiency in burning. Burning coal or oil, though, added noticeably to
a growing problem with air pollution. Petrochemicals were also fouling the waters
of rivers and coastlines and killing wildlife. The heavily populated and highly indus-
trialized West produced more waste and garbage than all the humans in all of previ-
ous history. A growing awareness of these problems spawned environmentalism,
or looking after the earth’s best interests. Earth Day was first proclaimed in 1971.
Political parties usually called Greens were organized chiefly around environmental
issues, winning representation in governments in some European countries by the
end of the century. Meanwhile, many governments responded to environmental
degradation with regulations about waste management and recycling. The damage
to nature slowed its pace, and in a few areas the environment even improved.
As an alternative to oil, some suggested nuclear energy, power based on the
same physics that had created atomic and nuclear weapons. Nuclear power plants
used a controlled chain reaction to create steam, which drove the turbines and
dynamos to generate electricity. Many Western nations began building nuclear
power plants, hoping for a clean, efficient, and cheap form of power that did not
depend on Middle Eastern oil sheiks. Two disasters helped to reduce enthusiasm
for the technology. First, at Three Mile Island in Pennsylvania (1979), a malfunc-
tioning valve cut off coolant water to the hot reactor, causing part of the radioactive
pile to melt down. If the situation had not been solved, a catastrophic explosion
might have created the equivalent of an atomic bomb. Still, today, the hundreds of
thousands of tons of highly radioactive debris remain to be cleaned up. Then, at
Chernobyl in the Ukraine, on 26 April 1986, two out of four reactors at a nuclear
complex did explode. Only a handful of people were killed outright, but thousands
needed to be evacuated and were forbidden to return to their now-contaminated
homes. Hundreds of children also developed birth defects, thyroid diseases, and
immune system damage. While neither of these accidents was a worst-case disaster,
they were enough to discourage the construction of more nuclear power plants in
many Western nations for several decades. The disposal of nuclear waste products,
dangerous for generations to come, likewise remains an unsolved problem.
Concern about the physical world mirrored a continued interest in human
spirit. Religious divisions, sects, and options multiplied. Perhaps the nuclear arms
race, which had created a situation where the world could end with the press of a
few buttons, made people appreciate the fragility of human existence. Indian-
inspired cults and practices such as yoga, Hare Krishna, or transcendental medita-
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