In “Under a White Sky,” Elizabeth Kolbert takes a hard look at the new world we are creating. Along the way, she meets biologists who are trying to preserve the world’s rarest fish, which lives in a single tiny pool in the middle of the Mojave; engineers who are turning carbon emissions to stone in Iceland; Australian researchers who are trying to develop a super coral that can survive on a hotter globe; and physicists who are contemplating shooting tiny diamonds into the stratosphere to cool the earth.

One way to look at human civilization, says Kolbert, is as a ten-thousand-year exercise in defying nature. In “The Sixth Extinction,” she explored the ways in which our capacity for destruction has reshaped the natural world. Now she examines how the very sorts of interventions that have imperilled our planet are increasingly seen as the only hope for its salvation, according to a review on goodreads.com.