Bill McKibben

Activist and writer Bill McKibben is the award-winning author of The End of Nature and The Age of Missing Information. His new book, Eaarth, argues that our planet already has been irrevocably remade by human activity.From McKibben's conversation with Kai Ryssdal at Marketplace:Ryssdal: This book, for those who can't see it out there, the title is "Eaarth" with the unconventional spelling of