Nations said to be undermining science at UN nature talksPolitical tensions are mounting in the final days of the United Nations biodiversity talks with a handful of countries accused of trying to weaken the science that underpins global nature policy.The growing feud over the role of science has alarmed veteran negotiators and follows recent efforts by fossil fuel-reliant nations to delay reports by the IPCC, the global authority on climate change.“The same thing is happening here as what is taking place with the IPCC,” said a French government delegate at the COP17 summit in Yerevan, Armenia.He said four countries –…