Over population is going to be a problem exacerbated by climatic change, as the tropics will soon (relatively) become mostly uninhabitable. There will then be several hundred million 'climate refugees' looking (quite rightly) for somewhere else to live.
Over population is going to be a problem exacerbated by climatic change, as the tropics will soon (relatively) become mostly uninhabitable. There will then be several hundred million 'climate refugees' looking (quite rightly) for somewhere else to live.