Climate change poses a grave threat to the flood resilience of communities, with the Climate Change Committee warning that warming of 4°C or more implies inevitable increases in flood risk even in the most ambitious adaptation scenarios considered. The Government needs to be frank about the level of risk it is prepared to accept in extreme climate change scenarios, and those likely to be affected need to know now. The Government should explain how a reasonable worst-case scenario for increased flood and coastal risk due to climate change would impact upon its national objective for flood resilience, and what this would mean for funding and decisions about whether to protect any given place.