Andrew Muir: Environmental tipping point near - at last world is listening

Wilderness Foundation head Andrew Muir is one of those low profile South Africans who quietly go about changing the world. He is a regular on global platforms, providing compelling evidence of the environmental challenges being wrought by man's ignorance of how his actions are affecting Mother Nature. Andrew is also a regular invitee to the World Economic Forum in Davis, where we first met. He is always full of fascinating if scary factoids about the biggest challenge facing mankind. We caught up at the WEF Africa summit in Cape Town. - Alec Hogg  Learn more about your ad choices. Visit megaphone.fm/adchoices