Elizabeth Kolbert on The Sixth Extinction

New Yorker staff writer Elizabeth Kolbert discusses her Pulitzer Prize-winning book, “The Sixth Extinction: An Unnatural History.” The book explores the five major mass extinction events that have occurred on the Earth over the last half billion years. Kolbert contrasts these prior mass extinctions with the sixth major mass extinction event, which we are in the midst of today. This time, instead of an asteroid of a sudden glaciation event, humans are the culprit.