Scientists are still trying to determine what triggered a massive glacier collapse that sent ice plunging up to 1,300m into the valley below, setting off a destructive flood in Nepal. Glaciologist Simon Cook from the University of Dundee tells CNA’s East Asia Tonight that a warming event and snowmelt could have played a role, but stresses that the theory remains speculative. He also warns of continuing risks that could endanger rescue efforts. Subscribe to our channel here: https://cna.asia/youtubesub Visit our website: https://cna.asia Download our app: https://cna.asia/app Get our editors' picks of stories via chat apps: Telegram: https://cna.asia/telegram WhatsApp: https://cna.asia/whatsapp Follow us on these platforms: https://www.facebook.com/channelnewsasia https://www.instagram.com/channelnewsasia https://www.tiktok.com/@channelnewsasia