The worst floods for 270 years hit the UK in 2000,
and cost farmers alone nearly £500 million. Other people who were flooded, and insurance companies, lost even more.
How will climate change affect the sea?
Like this:
As temperatures rise, the sea absorbs heat from the atmosphere.
The warmer the sea gets, the more it expands, and the more the sea level rises.
Higher sea levels and more storms (more rain on fewer days) lead to more severe flooding.