cause even faster warming. As the polar ice caps melt, for example, they no
longer reflect the sun’s rays, so the earth absorbs still more heat. Lovelock
predicts the death of billions of people before equilibrium is established once
more. Global warming also increases other weather problems: the average
windspeeds of hurricanes have doubled in the past thirty years, and they are
also more frequent.^40
That’s not all. Evidence shows that carbon dioxide, a normal result of
burning oil or coal, also makes the oceans more acidic. Scientists warn that, by
the end of this century, this acidity could decimate coral reefs and kill off
creatures that undergird the sea’s food chain. “It’s the single most profound
environmental change I’ve learned about in my entire career,” said Thomas
Lovejoy, author of Climate Change and Biodiversity. “What we’re doing in
the next decade will affect our oceans for millions of years,” said Ken
Caldeira, oceanographer at Stanford University.^41
In addition to our energy and global-warming crises, we face other severe
problems. Thousands of species face imminent extinction. One list of likely
candidates includes a third of all amphibians, a fourth of the world’s mammals,
and an eighth of its birds. Wilson thinks the foregoing is optimistic and
believes two thirds of all species will perish before the end of the century.
Nuclear proliferation poses another threat. In 1945 only one country—the
United States—had the know-how and economic means to build nuclear
weapons. Since then, Great Britain, the USSR, France, China, India, Pakistan,
Israel, South Africa, and apparently North Korea have joined the nuclear club.
If Pakistan and North Korea can do it, clearly almost every nation on earth—
and some private organizations, including terrorist groups—has the capability.
The United States came uncomfortably close to using nuclear weapons in
Vietnam in 1969, and India and Pakistan came uncomfortably close to using
them against each other in 2002.^42
In the long run, just keeping to the old paths regarding all these new
problems is unlikely to work. “From the mere fact that humanity has survived
to the present, no hope for the future can be salvaged,” Mishan noted. “The
human race can perish only once.”^43 If the arguments in this new edition of this
chapter seem skewed to favor the environmentalists, perhaps the potential
downside risk if they are right, as well as the ominous developments since the
first edition, make this bias appropriate. After all, history reveals many
previously vital societies, from the Mayans and Easter Island to Haiti and the