it is even worse when someone is actively destroying clean water sources. Back when russians blew up the Kakhovka dam - there was a huge crisis because it wrecked the entire ecosystem and disrupted water supply for a couple of months. Before everything got worked out and the new infrastructure was installed - everything was running on makeshift water storages and filtering systems and the likes. So what russians decided to do? Send some drones to blow it up for shits and giggles.