This week we continue our four-part series about earth, air, water, and fire. Today’s episode is about air and how the gases in it have been changing ever since Day 1.

SHOW CLOCK

00:00 Opening Credits

00:32 Introduction

01:11 A Brief History of Air

05:14 Breathing Toxic Soup

12:45 Closing Credits

CREDITS

Special thanks to Bob Kenworthy and Jim Burress for researching this show. Additional credits available at chemheritage.org/distillations.