Every Thursday, a new episode of Living Planet brings you environment stories from around the world, digging deeper into topics that touch our lives every day. The prize-winning, weekly half-hour radio magazine and podcast is produced by Deutsche Welle, Germany's international broadcaster - visit dw.com/environment for more.
What happens when our water is contaminated, and who protects it? We meet the people cleaning our beaches, protecting our drinking water, and studying why there's not enough - or sometimes too much water.