Humanity, the doomster argument goes, is on a collision course with the natural world, and the signs are everywhere: shrinking forests, croplands, fisheries, and water tables; rising pollution and temperatures. During the next 50 years, if current trends continue, humans will use more energy than in all of previously recorded history. More environmental stress will mean less growth and will trigger more conflict — bitter clashes among civilizations over a dwindling resource pie, mass migrations, “climate refugees,” uncontained diseases caused by “superbugs” impervious to modern medicines, water wars, maybe even food wars. In other words, the world will become like an episode of Survivor, except you can actually die.
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