By Michael D. Lemonick




Credit: flickr/MegMoggington




It’s also true that in the modern world, the richest people consume vastly more resources, and contribute vastly more to the planet’s environmental ills, than the poorest. By some estimates, fully 50 percent of all human CO2 emissions come from the richest 500 million people, while the poorest 3 billion generate a mere 7 percent. If those billions can raise their standard of living significantly, as they have every right to do, the impacts of all that consumption and those emissions will become vastly worse.


It would be simplistic, then, to put all the blame for the planet’s environmental woes on population. Nevertheless, it’s clear that if the Earth’s population were to magically drop from 7 billion to, say, 1 billion  (“magically,” because you could do it with a horrifying disease or some other catastrophe, but I’d just as soon not), most of the issues environmentalists worry about would become easier to manage, even though they’d hardly disappear.

So why aren’t policymakers talking more about population? Why aren’t the media reporting more about it? One reason is that it’s a very touchy subject. Plenty of religious leaders have a real problem with family planning in any form, and China’s infamous one-child policy has led to forced abortions, forced sterilization and, thanks to a strong preference for boys, a severe gender imbalance. In large part, it was his opposition to the excesses of the one-child policy that got Chinese activist Chen Guangcheng in trouble with authorities earlier this year.

The issue of population is, in short, more than a little radioactive. Besides, fertility rates have been dropping in recent decades thanks largely to the education of women, so the problem clearly isn’t as bad as it could be. In fact, the U.N. was projecting 15 billion people by the middle of this century only a couple of decades ago, so we’re moving in the right direction. But the U.N. also acknowledges that just the slightest uptick in those rates could drive the number drastically upward again. A problem that appears to have stabilized could destabilize very quickly.

That’s why at least one environmental group has taken on the issue of overpopulation: last year, the Center for Biological Diversity began talking about population growth as a key factor in environmental degradation. According to an article in the New York Times, the group is, among other things, handing out condoms in packages with endangered animals on them and emblazoned with slogans including “Wrap with care, save the polar bear,” and “Wear a condom now, save the spotted owl.”

OK, it’s a bit silly (although not as silly as this condom promo video from India), and there’s nothing much we can do to reduce the population by any significant amount. But as July’s World Population Day approaches, it’s worth remembering that the sheer number of people on Earth makes every threat to the environment worse than it would otherwise be.

And it wouldn’t be a bad thing if more of us were talking about it.


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