Icelandic horses play on a stud farm in Wehrheim Frankfurt, Germany, as the sun rises on Thursday, May 21, 2020. (Photo by Michael Probst/AP Photo)

Iceland foals stand together at a stud farm in Wehrheim near Frankfurt, Germany, Friday, July 15, 2022. (Photo by Michael Probst/AP Photo)

A hare runs on a small road as the sun rises in Frankfurt, Germany, Monday, June 12, 2023. (Photo by Michael Probst/AP Photo)

Young Icelandic mares graze on a meadow in Wehrheim near Frankfurt, Germany, on a foggy Tuesday, September 26, 2023. (Photo by Michael Probst/AP Photo)

Bees fly in front of a beehive in the outskirts of Frankfurt, Germany, Monday, April 8, 2024. (Photo by Michael Probst/AP Photo)

A car drives between trees in a small park in Frankfurt, Germany, Monday, April 8, 2024. (Photo by Michael Probst/AP Photo)

Cars drive on an alley between rape fields in the outskirts of Frankfurt, Germany, Monday, April 22, 2024. (Photo by Michael Probst/AP Photo)

To mark World Water Day, on March 22nd Solidarités International and its agency BDDP Unlimited will roll out a campaign to build awareness of the scourge of undrinkable water.