Guardian: Twelve leading scientists, including the former head of Kew Gardens and the biodiversity adviser to the president of the World Bank, have written an open letter accusing two international thinktanks of “distortions, misrepresentations, or misinterpretations of fact” in their analysis and writings about rainforests and logging. The unprecedented attack on the tactics and objectivity of the two groups who claim to be independent is contained in an open letter sent to the Guardian. It …