Agriculture already shapes the globe. With food insecurity growing around the globe, the unpredictabilities of climate change and population growth booming... what will we eat in the future?
Jonathan Foley heads the Global Landscape Initiative at the University of Minnesota’s Institute on the Environment.
Historian David Blight tells Jim Fleming that popular memory of the Civil War all but obliterated the liberation of Black Americans.
David Leavitt is the author of a novel called "The Indian Clerk" which tells the story of Srinivasa Ramanujan, the uneducated Indian who amazed Cambridge University with his mathematical discoveries.
Brian Turtle tells Steve Paulson how he came up with the game "Six Degrees of Kevin Bacon" and plays a few rounds with Steve.
And what of those of us who have died, and come back to life?
Neurosurgeon Eben Alexander had a near death experience in 2008.
Contemplating the multiverse is mind-blowing, but if you want a truly earth-shattering controversy in physics, you have to go back 500 years to Copernicus' radical theory. Dava Sobel tells his story.
Elisabeth Sifton is the daughter of theologian Reinhold Niebuhr, who wrote the famous “Serenity Prayer.” Sifton tells Steve Paulson about the history of the Serenity Prayer.
