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.
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.
Dean Hamer says that human beings are hard-wired for belief and are genetically pre-disposed to reach beyond their own limitations.
A few years ago, poet Christian Wiman picked up his pen after a three-year hiatus, when he fell in love and was diagnosed with cancer. Listen in as he reads a poem from "Every Riven Thing," the book of poems that followed. You can also hear our interview with him about the collection.
Physicist Michio Kaku's Dangerous Idea? A virtual "library of souls."
Alissa Quart Recommends Elena Ferrante's "Days of Abandonment" and Elizabeth Hardwick's "Sleepless Nights."
Copenhagen, Johannesburg, Kyoto, Rio... it can be hard to keep track of all the international summits where global leaders have tried to tackle climate change. Do international climate negotiations do any good? Author and lobbyist Felix Dodds thinks so. Here's why...
Erin Gruwell and two of her former students talk with Judith Strasser. They describe the hostile situation in their school in Long Beach, California, and Miss Gruwell’s solution.
