麻豆约拍

Adam Walton explores past ice ages and asks if we might see more in the future.

Head of the School of Earth & Environmental Science at Cardiff University, Professor Ian Hall and Oceanographer, Aidan Starr, discuss new research into the processes that lead to ice ages.

And Lecturer at the School of Geography & Earth Sciences at Aberystwyth University, Dr Marie Busfield, explains snowball earth theory.