It’s unreactive, lighter than air, and surprisingly important to the global economy. Zachary Crockett goes up an octave.

• SOURCES:
  • Sophia Hayes, professor of chemistry at Washington University in St. Louis.
  • Phil Kornbluth, president of Kornbluth Helium Consulting.
  • Bo Sears, C.E.O. of Helix Exploration PLC.

• RESOURCES:
  • "Why Semiconductor Growth Will Drive Helium Demand," by Kitty Wheeler (Technology Magazine, 2024).
  • "The World Is Running Out of Helium. Here's Why Doctors Are Worried," by Caroline Hopkins (NBC News, 2022).
  • "Nothing on Earth Can Replace Helium — and It’s in Peril," by Joseph DiVerdi (The New York Times, 2019).
  • Selling the Nation's Helium Reserve, by the National Research Council (2010).
  • "Discovery of Helium in Natural Gas at the University of Kansas," by the American Chemical Society (2000).

• EXTRAS:
  • "Is Macy’s Thanksgiving Parade Its Most Valuable Asset?" by Freakonomics Radio (2024).

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