The floods in the UK has triggered a storm of utter nonsense about what does and doesn’t help to prevent or reduce flooding. One of these claims is that dredging rivers will help with preventing flooding or at least will make them less severe. This is wrong.
I live in The Netherlands and we’re a country with a very long history fighting against the ocean and our rivers. It’s because of our constant battle with water that we have a vast network of defences, a lot of resources to help during a crisis, and contingency plans when things do go wrong. But despite all that nature still sometimes surprises us, it has learned us to never underestimate her. We got two such lessons in 1993 and 1995 courtesy of the river the Meuse.