No other species has so drastically changed life on earth. But many, perhaps millions, are stranded where they are unable, or lack time, to adapt. Some plants and animals have survived by migrating. With the discovery of energy sources underground, we began our greatest and most deadly transformation-of the composition of the atmosphere and the oceans. They-we-started demolishing forests to grow food and spreading animals, plants, and other life forms to new continents, thus changing the face of the earth. As modern humans spread from East Africa around the globe, they found archaic humans similar to themselves and gigantic animals (megafauna)-both of which they wiped out. Humans began impacting the world from the start. Scientists have identified five previous mass extinction events over 500 million years and many believe a Sixth Extinction, set in motion by humans, is underway. In The Sixth Extinction, journalist Elizabeth Kolbert argues that humans are rapidly changing the shape of the earth and the composition of the atmosphere, unleashing a mass extinction of most living things, quite possibly including ourselves. 1-Page Summary 1-Page Book Summary of The Sixth Extinction
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