How high could sea levels rise?
The Met Office says a rise in sea level is the main factor likely to change flood risk across the UK in the future.
The best case emission scenario would see an increase of around 30mm in Cardiff, but the worst case could see a rise of more than 1.1m at the turn of the century.
Launching the new report into how climate change will affect the UK, the first of its kind in almost a decade, Environment Secretary Michael Gove said no-one could predict the future with absolute certainty.
Mr Gove said: “In producing this first major update of climate projections for nearly 10 years, they have given governments, local authorities, land managers, national infrastructure bodies and other businesses an invaluable set of tools with which to assess the nature and scale of challenges, and take decisions accordingly.”
The Environment Secretary said the UK was already feeling climate-related extremes, including record wet winters in 2013-14 and 2015-16, which caused flooding, and this year’s heatwave, which led to wildfires and damage to agriculture.
He said that in the UK: “Climate change will manifest itself most acutely when it comes to water the intense rainfall of the winter, the arid heat of the summer and rising sea levels will be how we experience climate change most immediately in our everyday lives.”