Alun is a glaciologist/climate scientist who’s passionate about icy environments. Over 30 years, he’s worked across the planet – Antarctica to Greenland, often off his sailboat – to understand how the cryosphere is melting, flowing and shrinking faster, thereby raising global sea levels. He has also popularised science in BBC’s “Frozen Planet“, Netflix’s “Our Planet“, “Chasing Ice” and other gong-winning documentaries on TV, internet and radio.