He is one of the UK's best known scientists and on Monday Professor Robert Winston delivered the inaugural Beardmore Lecture to mark ten years of the Golden Jubilee Hospital in Clydebank.
The question he asked was can we survive the 21st century?
He spoke to Scotland Tonight after his speech to discuss the health threats facing us in 2012 and beyond.
More About Scotland Tonight
- Scotland Tonight: Is enough being done to tackle child poverty?
- Scotland Tonight: Gordon Brown unveils plan for further devolution
- Scotland Tonight: Will Quebec have another shot at independence?
- Watch a live stream of Scotland Tonight: Scotland's current affairs show
- Scotland Tonight: Celebrated female Labour MP discusses feminism
- Osborne 'not serious' on blocking currency union hears Holyrood
- Cyclist Obree in Commonwealth petition over Uganda's anti-gay laws