'Action needed' to save flood homes
9 April 2014 Last updated at 20:15 BST
More of London's underground rivers need to be restored rather than being "boxed" in to avoid flooding, the London Assembly environment committee has said.
It warns that about 24,000 properties are at significant risk of river flooding, with the Environment Agency estimating current plans will protect 10,000 of these.
BBC London's Tarah Welsh spoke to Baroness Jones from the Green Party.