All Too Clear: Beneath The Surface of the Great Lakes

Thu, Jun 25 10:00 P.M. NHPBS (11.1)  

Underwater drones reveal how invasive quagga mussels are reshaping North America's Great Lakes on a scale not seen since the glaciers. By trapping nutrients on the lake bottom, they cause widespread species loss and biological deserts - yet leave unusually transparent waters. Scientists race to control the invaders and discover clearer waters may offer an opportunity to restore an ancient ecosystem.

Duration: 59 minutes and 0 seconds

All broadcast times for this episode: (show all)

Thu, Jun 25

10:00 P.M.

All Too Clear: Beneath The Surface of the Great Lakes     NHPBS (11.1)

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