I’m no scientist. (Most scientists think our greenhouse gas emissions put us on track for much worse ahead, so we ought to act with urgency to reduce them.*) But have you noticed something funny about the weather lately?
*Most Democrats think this, too.
Peter Kaczowka: “[Regarding your call to vegetarianism last week], note that beef and pork are the problem. Chicken and egg consumption are greener than fish – which is as bad as red meat! ‘The vegetarian diet turned out to be the most energy-efficient [concluded this 2006 University of Chicago paper], followed by poultry and the average American diet. Fish and red meat virtually tied as the least efficient.’”
TIME TO PANIC
From the New York Times:
You really do have to wonder whether a few years from now we’ll look back at the first decade of the 21st century — when food prices spiked, energy prices soared, world population surged, tornados plowed through cities, floods and droughts set records, populations were displaced and governments were threatened by the confluence of it all — and ask ourselves: What were we thinking? How did we not panic when the evidence was so obvious that we’d crossed some growth/climate/natural resource/population redlines all at once?
“The only answer can be denial,” argues Paul Gilding, the veteran Australian environmentalist-entrepreneur, who described this moment in a new book called The Great Disruption: Why the Climate Crisis Will Bring On the End of Shopping and the Birth of a New World. “When you are surrounded by something so big that requires you to change everything about the way you think and see the world, then denial is the natural response. But the longer we wait, the bigger the response required.”
Gilding cites the work of the Global Footprint Network, an alliance of scientists, which calculates how many “planet Earths” we need to sustain our current growth rates. G.F.N. measures how much land and water area we need to produce the resources we consume and absorb our waste, using prevailing technology. On the whole, says G.F.N., we are currently growing at a rate that is using up the Earth’s resources far faster than they can be sustainably replenished, so we are eating into the future. Right now, global growth is using about 1.5 Earths. “Having only one planet makes this a rather significant problem,” says Gilding.
This is not science fiction. This is what happens when our system of growth and the system of nature hit the wall at once. While in Yemen last year, I saw a tanker truck delivering water in the capital, Sana. Why? Because Sana could be the first big city in the world to run out of water, within a decade. That is what happens when one generation in one country lives at 150 percent of sustainable capacity.
“If you cut down more trees than you grow, you run out of trees,” writes Gilding. “If you put additional nitrogen into a water system, you change the type and quantity of life that water can support. If you thicken the Earth’s CO2 blanket, the Earth gets warmer. If you do all these and many more things at once, you change the way the whole system of planet Earth behaves, with social, economic, and life support impacts. This is not speculation; this is high school science.”
It is also current affairs. “In China’s thousands of years of civilization, the conflict between humankind and nature has never been as serious as it is today,” China’s environment minister, Zhou Shengxian, said recently. “The depletion, deterioration and exhaustion of resources and the worsening ecological environment have become bottlenecks and grave impediments to the nation’s economic and social development.” What China’s minister is telling us, says Gilding, is that “the Earth is full. We are now using so many resources and putting out so much waste into the Earth that we have reached some kind of limit, given current technologies. The economy is going to have to get smaller in terms of physical impact.”
We will not change systems, though, without a crisis. But don’t worry, we’re getting there.
We’re currently caught in two loops: One is that more population growth and more global warming together are pushing up food prices; rising food prices cause political instability in the Middle East, which leads to higher oil prices, which leads to higher food prices, which leads to more instability. At the same time, improved productivity means fewer people are needed in every factory to produce more stuff. So if we want to have more jobs, we need more factories. More factories making more stuff make more global warming, and that is where the two loops meet.
But Gilding is actually an eco-optimist. As the impact of the imminent Great Disruption hits us, he says, “our response will be proportionally dramatic, mobilizing as we do in war. We will change at a scale and speed we can barely imagine today, completely transforming our economy, including our energy and transport industries, in just a few short decades.”
We will realize, he predicts, that the consumer-driven growth model is broken and we have to move to a more happiness-driven growth model, based on people working less and owning less. “How many people,” Gilding asks, “lie on their death bed and say, ‘I wish I had worked harder or built more shareholder value,’ and how many say, ‘I wish I had gone to more ballgames, read more books to my kids, taken more walks?’ To do that, you need a growth model based on giving people more time to enjoy life, but with less stuff.”
Sounds utopian? Gilding insists he is a realist.
“We are heading for a crisis-driven choice,” he says. “We either allow collapse to overtake us or develop a new sustainable economic model. We will choose the latter. We may be slow, but we’re not stupid.”
A version of this op-ed appeared in print on June 8, 2011, on page A23 of the New York edition with the headline: The Earth Is Full.
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