For more than forty years Greenpeace has campaigned against environmental degradation. This month it's mobilising its activists to make a stand on saving the planet at the UN climate change conference in Doha. Four decades on and with global warming slipping down the agenda - is anyone listening to what Greenpeace have to say? HARDtalk talks to South African Kumi Naidoo - Executive-Director of Greenpeace International. Doesn't his organisation need a new bold vision to make an impact - and if so - what is it? Show less