A sea wall of course! Around the whole UK!!!
Should we build it? £24,290,000,000 at £10,000 a meter to protect the UK from rising sea levels and coastal erosion.
Trumps pointless wall was estimated to cost £25 Billion (Washington Post Study) so we save almost £1 Billion for something with more use!
Let's show the world what a wall should be. Build The Wall!