Population


The World’s Population Hasn’t Grown Exponentially for at Least Half a Century

, scientific adviser, Climate and Energy

Recently I was looking at some data about world food production on the excellent Our World in Data site, and I discovered something very simple, but very surprising about the world’s population. We often hear (and I used to teach) about the threat of an exponentially growing population and the pressure it is supposed to be putting on our food supply and the natural resources that sustain it (land, water, nutrients, etc). But I found that the global population isn’t growing exponentially, and hasn’t been for at least half a century.

It has actually been growing in a simpler way than exponentially—in a straight line.

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Overpopulation, and a Movie that Definitely Won’t Get the Oscar

, scientific adviser, Climate and Energy

As Oscar Night approaches, I’ve gotten to thinking about the movies I saw last year—not just the good ones, but a bad one too. It’s Inferno, which seemed to have everything going for it, but has sunk into cinematic oblivion with scarcely a trace. Why?

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5 Things to Know about Population and Heat-trapping Emissions

, senior climate scientist

[Co-written with Peter Frumhoff, Director of Science & Policy/Chief Scientist, Climate]

In public talks about climate science, my colleague, Peter Frumhoff and I often show images of the projected rapid increase in global emissions of carbon dioxide, the most important heat-trapping gas. Read more >

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