As a result of climate change, more and more regions are turning into inhospitable deserts. Fertile soil becomes so desiccated or saline that nothing will grow in it. There's increasing less to eat. Hunger and thirst force ever more people to flee their homes. Competition and conflict over dwindling resources are all but pre-ordained. Read more: http://www.dw.com/en/program/global-3000/s-11487-9798