Matt Ridley har i Wired en glimrende gennemgang af nogle dommedagsprofetier, de fleste af os er vokset op med. Indelt som Apokalypsens Fire Ryttere er her menneskets blotte eksistens som en trussel mod sig selv.

Of all the cataclysmic threats to human civilization envisaged in the past 50 years, none has drawn such hyperbolic language as people themselves. “Human beings are a disease, a cancer of this planet,” says Agent Smith in the film The Matrix. Such rhetoric echoes real-life activists like Paul Watson of the Sea Shepherd Conservation Society: “We need to radically and intelligently reduce human populations to fewer than one billion … Curing a body of cancer requires radical and invasive therapy, and therefore, curing the biosphere of the human virus will also require a radical and invasive approach.”

On a “stinking hot” evening in a taxi in Delhi in 1966, as Paul Ehrlich wrote in his best seller, The Population Bomb, “the streets seemed alive with people. People eating, people washing, people sleeping. People visiting, arguing, and screaming. People thrusting their hands through the taxi window, begging. People defecating and urinating. People clinging to buses. People herding animals. People, people, people, people.” Ehrlich’s conclusion was bleak: “The train of events leading to the dissolution of India as a viable nation” was already in progress. And other experts agreed. “It is already too late to avoid mass starvation,” said Denis Hayes, organizer of the first Earth Day in 1970. Sending food to India was a mistake and only postponed the inevitable, William and Paul Paddock wrote in their best seller, Famine—1975!

What actually happened was quite different. The death rate fell. Famine became rarer. The population growth rate was cut in half, thanks chiefly to the fact that as babies stop dying, people stop having so many of them. Over the past 50 years, worldwide food production per capita has risen, even as the global population has doubled. Indeed, so successful have farmers been at increasing production that food prices fell to record lows in the early 2000s and large parts of western Europe and North America have been reclaimed by forest. (A policy of turning some of the world’s grain into motor fuel has reversed some of that decline and driven prices back up.)

Meanwhile, family size continues to shrink on every continent. The world population will probably never double again, whereas it quadrupled in the 20th century. With improvements in seeds, fertilizers, pesticides, transport, and irrigation still spreading across Africa, the world may well feed 9 billion inhabitants in 2050—and from fewer acres than it now uses to feed 7 billion.

Washington Post’s George Hill har også et godt indlæg om fraværret af undergang, men har denne forstemmende historie om hvorledes succes tilfalder de urette

Forty years after “The Limits to Growth” imparted momentum to environmentalism, that impulse now is often reduced to children indoctrinated to “reduce, reuse, and recycle.” Lomborg calls recycling “a feel-good gesture that provides little environmental benefit at a significant cost.” He says that “we pay tribute to the pagan god of token environmentalism by spending countless hours sorting, storing and collecting used paper, which, when combined with government subsidies, yields slightly lower-quality paper in order to secure a resource” — forests — “that was never threatened in the first place.”

In 1980, economist Julian Simon made a wager in the form of a complex futures contract. He bet Paul Ehrlich (whose 1968 book “The Population Bomb” predicted that “hundreds of millions of people” would starve to death in the 1970s as population growth swamped agricultural production) that by 1990 the price of any five commodities Ehrlich and his advisers picked would be lower than in 1980.

Ehrlich’s group picked five metals. All were cheaper in 1990.

The bet cost Ehrlich $576.07. But that year he was awarded a $345,000 MacArthur Foundation “genius” grant and half of the $240,000 Crafoord Prize for ecological virtue. One of Ehrlich’s advisers, John Holdren, is Barack Obama’s science adviser.

Begge artikler er meget anbefalelsesværdige.