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How Trees Pollute the Air (and Why Your Coworker's Scientific Citations Don't Mean They're Right)
Season 10
Episode 14
10:38
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Why is the US buying Canada's trash for $30,000 per gram?
Season 10
Episode 12
Companies around the world are fighting to buy a rare radioactive substance, despite its $30,000-per-gram price tag. This substance powers emergency exit signs that can stay bright for two decades without power, glow-in-the-dark keychains, and might one day unlock the holy grail of clean energy. What is this mystery substance?