Why is the water so green?
It looks toxic but isn’t. With the help of tracer measurements and little technical equipment we can determine the discharge of glacier-fed mountain streams. Image: Alina Motschmann
Field measurements in the Palcacocha valley, Cordillera Blanca, Peru
The water is essential for people living downstream and the inhabitants of the Rio Santa Valley. Due to climate change the glaciers of the Cordillera Blanca are receding and with it a vital water resource.