On today's show we investigate the science beneath our streets. First how a team of amateur speleologists is keeping Howe Caverns safe for future generations. Then a look at Philadelphia's historic sewer system.
SHOW CLOCK
00:00 Opening Credits
00:39 Introduction
01:24 Howe Caverns' Annual Cleanup
09:30 Interview: Adam Levine
16:02 Closing Credits
CREDITS
Special thanks to Amy Kraft,Adam Levine, Mia Lobel, and Jennifer Dionisio for researching this show. Additional credits available at chemheritage.org/distillations.
