Catalyst: ABC TV Eastern Antarctica, near Casey Station: Mark Horstman investigates.

Twenty metres beneath Antarctic sea ice, divers are simulating a ‘future ocean’ – four underwater ‘labs’ are testing the impact of ocean acidification on seafloor communities.   This is no carefree summer on the coast. Scientists are braving a hidden world entombed in thick ice to investigate a looming catastrophe. They want to discover if Antarctic marine life can survive ocean acidification.

Amongst the group is Nick Roden – of ex Oceano fame!

Watch the program: