Under a Green Sky: Global Warming, the Mass Extinctions of the Past, and What They Can Tell Us About Our Future
by Peter D. Ward

Paleontologist Peter Ward warns us that "our world is hurtling toward carbon dioxide levels not seen since the Eocene epoch of 60 million years ago, which, importantly enough, occurred right after a greenhouse extinction." This book is worldchanging not because it points the way to a solution, but because it provides an insightful resource for imagining the true magnitude of our climate crisis.

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