Independent: Sir Ranulph Fiennes has added his voice to calls for urgent action to tackle climate change after seeing the effects of warming on the planet first-hand during trips to the Arctic. Sir Ranulph, the first to cross Antarctica on foot as well as to visit both the North and South Poles by surface, said it would be suicide to put commercial interests over global warming. He said he knows from personal experience that the warming climate has significantly changed the landscape of the Arctic, melting...