Guardian: Climate change will lead to a “fortress world” in which the rich lock themselves away in gated communities and the poor must fend for themselves in shattered environments, unless governments act quickly to curb greenhouse gas emissions, according to the vice-president of the Intergovernmental Panel on Climate Change (IPCC). Prof Mohan Munasinghe was giving a lecture at Cambridge university in which he presented a dystopic possible future world in which social problems are …