Too many people on the planet?

Tim Haab on Environmental Economics quotes a strangely retro article from Columbus Dispatch. It is like reading something from the days of the Club of Rome, Limits to Growth, and The Population Bomb,

“Right now, Earth’s carrying capacity is thought to be somewhere in the range of 4 billion to 5 billion people.

There are 6.5 billion of us.”

The Earth’s land surface is 148,939,100 km². If we were all still Palaeolithic hunter-gatherers, we would need at least 10 km² per person. So the carrying capacity of Planet Earth was at most 14,893,910 people using hunting and gathering technology.

Technology doesn’t remain constant.

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