When it comes to tackling climate change, the size of a country doesn’t matter — it’s their ambition that counts, says First Minister of Scotland Nicola Sturgeon. In a rousing talk, she shares examples of small nations — from Bhutan and Fiji to her own Scotland — whose leadership and climate action are galvanizing change on the international stage. (Followed by a brief Q&A with TED’s global curator Bruno Giussani about the Cambo oil field project)