Coastal flooding may cost $1trillion a year by 2100

An assessment of global coastal flooding risks has concluded that up to 5% of the global population may be affected by coastal flooding by the end of this century at a cost of $1trillion a year, compared to a current cost of around $10-40billion. The authors took account of socioeconomic changes as well as estimates of sea-level rise, although they did not attempt to include any decisions that might be taken to reduce the impact of climate change.