Sahel region is 'canary in the coalmine' on climate, says UN official||html|| ||Fundamentalismo Mali Dessertificacao Mudancas_Climaticas|2020-10-20_11:0|Skye||https://www.theguardian.com/world/2020/oct/19/sahel-region-is-canary-in-the-coalmine-on-climate-says-un-official|PDCProfs#