Agence France-Presse: Less than a tenth of the funds promised to developing countries by rich nations to help them adapt to global warming has actually been delivered, a study by The Guardian newspaper showed on Saturday. The paper, which used data compiled by the Overseas Development Institute think tank and confirmed by the United Nations, found that 18 billion dollars (13.9 billion euros) had been pledged by rich countries over the past seven years, but less than 900 million dollars has been …