Glaciers are hugely important to our planet, making up an enourmous amount of our fresh water supplies. But they are melting, and they are doing so at unprecedented levels. Dr. Jonathan L Bamber, Professor in the School of Geographical Sciences at Bristol University joined Jonathan to discuss. Listen and subscribe to Futureproof with Jonathan McCrea on Apple Podcasts and Spotify.    Download, listen and subscribe on the Newstalk App.    You can also listen to Newstalk live on newstalk.com or on Alexa, by adding the Newstalk skill and asking: 'Alexa, play Newstalk'.