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Description
In the 25 years since the first Earth Day in 1970, the environmental movement has spawned a new generation of scientists asking vital questions about the true state and fate of the planet. But, surprisingly, some of their answers -- and even the questions themselves -- contradict the... read more
First Sentence
World population has more than tripled since 1900, rising from 1.6 billion to 5.3 billion today.
Table of Contents
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