Are We Pushing the Planet to the Brink of Irreversible Environmental Change?

Are We Pushing the Planet to the Brink of Irreversible Environmental Change?

Roughly 10,000 years ago, the great sheets of ice that had covered much of the planet receded, triggering a wave of extinctions, ecological changes and, ultimately, the rise of human civilization . All those changes came about as roughly 30 percent of the planet’s surface went from ice-covered to ice-free.

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