Politicians not ambitious enough to save nature, say scientists

Getty ImagesUN biodiversity summits happen every two years - this year in Cali, ColombiaScientists say there has been an alarming lack of progress in saving nature as the UN biodiversity summit, COP 16, draws to a close.The scale of political ambition has not risen to the challenge of reducing the destruction of nature that costs the economy billions, said one leading expert.Representatives of 196 countries have…