<p>Climate experts are shocked by the rate at which greenhouse gases are rising. New US government figures show CO2 levels have already topped experts' worst-case scenarios. But if driving hybrids and switching to fluorescent bulbs isn't enough -- what is? William Powers presents a vision of truly sustainable living in an off-the-grid, 12x12 cabin.</p>
Intelligent. Optimistic. Curious.
Audio
Stephen Hall is the author of critically-acclaimed histories of contemporary science, including “Merchants of Immortality: Chasing the Dream of Human Life Extension.”
Zia Hassan had a life-changing conversation with a 9-year old boy in a Washington backyard. A conversation that 2.5 million people around the world have watched on YouTube. Zia tells us about the boy he calls "The Philosopher."
Music writer Peter Guralnick tells us how the legendary Sam Phillips created rock and roll as a musical protest.
What happens when war becomes just another video game? Lido Giovacchini tells a story of futuristic combat.
Brendan Koerner talks about his book, "The Skies Belong to Us: Love and Terror in the Golden Age of Hijacking."
What would a world without national borders look like? There's a good chance it'd look very similar to the one we have today. Parag Khanna is a global strategist who believes borders are becoming irrelevant in an increasingly connected world. More than national boundaries, he believes what matters are the connections between cities.
Stephen Prothero thinks it's imperative that Americans have a working knowledge of religious traditions at home and abroad to understand other peoples and our own politicians.
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