The leader of the French Greens, Daniel Cohn-Bendit We are all in La Rochelle this weekend, the Congress of the French Greens. There Cécile Duflot, 36, pugnacious, national secretary of the party, confirmed for the event. There's Nicolas Hulot, 56, environmentalist, a popular TV entertainer, one of the candidates in the primaries now officially open (you will vote online) to choose the green challenger Nicolas Sarkozy for president will face next year.