in this debate from cop26 in glasgow, young people from around the world will be asking four leading international political figures tough questions about their commitment to averting environmental disaster. and finding solutions for change. hello and welcome wherever you are to the bbc�*s big global climate debate. the latest report from the intergovernmental panel on climate change warned it's now code red for humanity. british prime minister borisjohnson said that if we don't get serious about climate change today, it will be too late for our children