Humans to Blame for the Sixth Mass Species Extinction

Millions of species are dying out in the current wave of species extinction. Elizabeth Kolbert’s compelling book “The Sixth Extinction: An Unnatural History” explains why humans are at fault.

Sixth Extinction
In "The Sixth Extinction," Elizabeth Kolbert explains why and how human beings have altered life on the planet in a way no species has before.
Photo courtesy Henry Holt and Company