The Princeton Environmental Institute will host a conversation with journalist Elizabeth Kolbert, author of the Pulitzer Prize-winning book, “The Sixth Extinction: An Unnatural History,” at 4:30 p.m. Thursday, Feb. 21, in McCosh Hall, Room 50. Kolbert is speaking as part of the PEI Taplin Environmental Lecture Series.

Kolbert, who writes for The New Yorker and is a visiting fellow at Williams College in Massachusetts, will discuss with Stephen Pacala, Princeton’s Frederick D. Petrie Professor in Ecology and Evolutionary Biology, how humans are driving the loss of biodiversity and the future of a society in which most species and habitats have been destroyed.