"Stager, a scientist who drills down into the earth and reads what the layers tell us about the history of the environment and climate change, uses that information to speculate on what the future might be like. The results are not as predictable as one might think. Neither the ardent environmentalists who see the end of life on the horizon, nor the naysayers who think the whole idea of climate change is bunk, will be vindicated. Stager doesn't so much think outside the box as reshape and extend the box and provide a useful additional perspective on a complicated and unavoidable issue."--Jonathon Welch, Talking Leaves, Buffalo, N.Y.