Dr. Garrison tells us about the use of tracer dyes in determining the rates of water flow through karst. Dr. Robinson reviews the literature on coal spills. How concerned should we be about the 9000 tons of coal spilled in the Ohio River in Louisville?

Thanks to Dee Yan Kee for his song 'Cosmopolitan - Margarita - Bellini'.

Bench Talk: The Week in Science | Dye Tracing & Coal Spill on Ohio River | Jan 7 2019 by Forward Radio is licensed under a  Creative Commons License.