Why humans might have to alter nature, in order to save it
What should conservation look like, in a world where people have affected every inch of the planet?
Environmental writer Emma Marris, author of Rambunctious Garden: Saving Nature in a Post-Wild World, joins us to discuss a new approach to caring for the earth.
She argues that we shouldn't just focus on preserving "pristine" environments -- shouldn't try to freeze every landscape in time. Instead, she says, we need to expand our definition of wildness, and celebrate change.