Sir David Attenborough tells US president how to save planet

Broadcaster and naturalist Sir David Attenborough has visited the White House at the invitation of US President Obama.

The president, who is said to be a great admirer of Sir David's work, wanted to discuss the future of the natural world.

Sir David advised the president that generating energy from renewable sources, and storing it, was key to moving away from fossil fuels.

Watch 'President Obama in conversation with Sir David Attenborough', on BBC1 at 2230 on Sunday 28 June