If you had the undivided attention of your country's leaders for an hour (they are busy people) which TEDTalks would you show them?
When watching TEDTalks I often wish I could show this to policy makers. I think if I had the attention of politicians on a national level I'd concentrate on education, as every new government changes the curriculum to reflect their own values, and those kids will have to save the planet and pay my pension, so I want them to get a good education!
Stephen Ritz (although he is a double whammy of education and greening cities), Salman Khan, Arthur Benjamin, Sugata Mitra
And for local politicians I'd chose talks on making cities greener.
Majora Carter, Pam Warhurst, Eduardo Paes. Robert Hammond