This child's expression is one usually reserved for kids who just got their first video game or just saw Disneyworld for the first time. Clean water to drink should not be so rare as to be an exciting surprise. But if we don't change our ways, in the not-too-distant future, it will be. Pure, clean water -- we won't be able to replace it once it's gone.
Willow spiling is the most common and best known green solution for bank revetment. The technique uses woven living willow to form flexible, live, growing structures which resist and deflect water flows, enabling the bank and vegetation to naturally re-generate and stabilise to prevent further erosion.