David Brower, former president of the Sierra Club, said in his book Let the Mountains Talk, Let the Rivers Run: “In the years since the Industrial Revolution, we humans have been partying pretty hard. We’ve ransacked most of the Earth for resources. A small part of the world’s population wound up with some nice goodies, but now we’re eating the seed corn. We are living off the natural capital of the planet, the principal, and not the interest. The soil, the seas, the forests, the rivers, and the protective atmospheric cover—all are being depleted. It was a grand binge, but the hangover is now
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