Big Green Challenge Winners event

You can watch the video of the Winners' event here, with special guests Lord Puttnam and the Eden Project's Tim Smit.

Jonathan Kestenbaum, Chief Executive, NESTA

Jane Riddiford, Global Generation

John Hutchison, Isle of Eigg

Tim Smit, Eden Project

Lord David Puttnam, Chairman of Big Green Challenge Judges

The Winners - Award presentation