We Were Warned

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Nov.18. Illustration for the New York Times Sunday Review.
Ad: Nathan Huang
Boise, Idaho — Twenty-five years ago this month, more than 1,500 prominent scientists, including over half of the living Nobel laureates, issued a manifesto titled “World Scientists’ Warning to Humanity” in which they admonished, “A great change in our stewardship of the earth and the life on it is required if vast human misery is to be avoided and our global home on this planet is not to be irretrievably mutilated.”