But this year has been a devastating reminder of the power and menace of water. Water scientists have a saying that if climate change is a shark, water will be the teeth. Now the world is being bitten, with news every day of extreme storms and killer floods. AdvertisementThose of us who work on water have warned for decades that climate change would intensify and amplify extreme weather. Infrastructure and communities designed decades or even centuries ago for a climate that no longer exists must be redesigned.