This report presents a short narrative summary description of the potential impacts of climate change at three spatial scales – global, city and community. At each scale, the summary draws together evidence from AVOID reports, the published literature and expert judgement to present a high-level overview of what a future world might look like. The narrative assumes that no new measures are implemented to reduce the emissions of greenhouse gases, over those already agreed, and global temperatures are therefore around 2o C higher in 2050 than at the beginning of the 21st century. The narratives further assume that local and regional changes in weather are plausibly described by the results of one climate model (HadCM3).
Plausible stories describing future cities are presented for London and Mexico City. At the community scale, a plausible future is presented for a village in southern England.