Joe Bunni: Skimming the sea's surface for photographic treasure

Culture meets climate change as we take a look at some of the artistic initiatives timed to tie in with Paris's COP21. Photographer Joe Bunni joins us in the studio to tell us about documenting the state of our seas. His latest project focuses on the space just above and below the ocean's surface and saw him coming face to face with a polar bear.

Also, Olafur Eliasson has installed a chilling reminder of the effects of global warming in his "Ice Watch" installation, and French artist JR has staged a silent, virtual protest in the streets of Paris.

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