The next episode of PBS’s Nova is “Mystery Beneath the Ice”.  It starts airing on January 20, 2016 at 9 PM on PBS.  There’s a preview on the web and like their other shows, full episodes should be available online.  Enjoy!

Program Description:

Tiny, transparent, and threatened, krill are crucial to the Antarctic ecosystem and, maybe, to the future of all our oceans. The population of krill has crashed since the 1970s for reasons that continue to baffle the experts. A leading theory says that krill’s life cycle is driven by an internal body clock that responds to the waxing and waning of the Antarctic ice pack, and as climate change alters the timing of the ice pack, their life cycle is disrupted. To test it, NOVA travels on the Polarstern, a state-of-the-art research vessel, to a frigid seasonal continent twice the size of the U.S. From camps established on the ice, scientists dive beneath the surface in search of the ice caves that shelter juvenile krill during the winter. There, they hope to discover what’s causing the krill to vanish and, ultimately, how the shifting seasons caused by climate change could disrupt ecosystems around the world.