Greenpeace has campaigned against environmental degradation, for more than 40 years. 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?