Development in Africa could falter as climate change grips the continent, increasing the length and severity of droughts and floods by altering precipitation patterns, among other impacts. The region needs a major shift in its economic development policies and thinking towards decentralised, green economic development, experts now say. 'The world’s big economies are largely living off financial transactions which are unconnected to development,' warns Supachai Panitchpakdi, secretary-general of United Nations Conference on Trade and Development.