ROME (Thomson Reuters Foundation) - Billions of dollars are being poured into insurance schemes to help farmers recover from worsening impacts of climate change, but as yet there is little evidence to show that such programs work for the poorest, experts say. About 75 percent of the world’s poorest people live in rural areas, and are particularly vulnerable to worsening drought, floods or other changes in climate, according to the U.N. International Fund for Agricultural Development...