Thirty years ago, the American geneticist and biologist Rachel Carson issued a warning about the effects of chemicals on mankind in her famous book Silent Spring: "If you want living things to adapt to these chemicals, it will take an extended period of time, not just a matter of years in a single life, but several generations.
卅年前，美國遺傳與生物學者卡遜女士在其知名著作「寂靜的春天」一書中，早對化學物質給人類帶來的影響提出忠告：「要使生物適應這些化學品，需要一段時間，不是人類一生中的幾年，而是要好幾代。