Artist Clément Beauvais uses water and ink to create stunning images in this campaign for humanitarian NGO Solidarités International and its agency BDDP Unlimited. The campaign points out that unclean drinking water is a major danger to people all around the world. According to BDDP, “It is estimated that 3.6 million people, including 1.5 million children under the age of 5, die every year of diseases borne by unhealthy water, making it the world’s leading cause of death.” Although the campaign was launched a few years ago, its the message (and these images) are as powerful as ever.