31:15

Michael Eddy: Teanaway Formation

2:01:35

P. Chilliwack Rainbow

49:44

Jeff Tepper: More Geochemistry

1:19:43

What Happened When Mount St. Helens Erupted? - Dr. Kurt Wise

27:02

Wenatchee Formation

22:40

Dramatic Canyons Reveal The Future of Florida

1:18:09

Dr. Patrick Moore - Carbon and Climate Catastrophe

48:32

Nick Zentner- Earthquakes: Will Everything West of I-5 Really Be Toast?