When I was growing up, the earth’s population was about 4.5 billion, and the U.S. population was about 225 million. Today the earth’s population is over 7.3 billion, and the population of the United States is at 320 million. Every day some 80,000 commercial planes transport people around the world. That’s every day. And carbon levels in our atmosphere have risen 36 percent since 1958, faster than at any other time in the earth’s history. As a result, our planet is warming, sea levels are rising, and species are going extinct at an unprecedented rate. We live in a time of extinction, a time when our climate scientists, looking a few decades down the road, can see the collapse of ecosystems that will drive the collapse of human civilization. Read more.
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