A tourist walks inside the Ice Palace glacier hollow at Hintertux glacier, located at around 3250 meters above sea level, in Zillertal, Austria, 02 March, 2016. The hollow's temperature remains constant at 0 degrees Celsius, in summer and winter alike, and is also used by the University of Innsbruck for scientific research projects. (Photo by Lisi Niesner/EPA)

Brazilian singer Larissa de Macedo Machado, better known by her stage name Anitta performs during the Coachella Valley Music and Arts Festival at the Empire Polo Club in Indio, California, U.S., April 22, 2022. (Photo by Maria Alejandra Cardona/Reuters)

People take pictures near a Soviet flag flying on an embankment in Saint Petersburg, Russia on June 17, 2023. The flags of Russia, the USSR, and the Russian Empire were installed on the shore to mark the anniversaries of each flag's adoption. (Photo by Anton Vaganov/Reuters)

Brazilian singer Larissa de Macedo Machado, better known by her stage name Anitta performs at the Coachella Music & Arts Festival at the Empire Polo Club on Friday, April 22, 2022, in Indio, Calif. (Photo by Amy Harris/Invision/AP Photo)

British professional tennis player Emma Raducanu after she was made a MBE (Member of the Order of the British Empire) by King Charles III at Windsor Castle on November 29, 2022 in Windsor, England. (Photo by Andrew Matthews – WPA Pool/Getty Images)

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.