Miss Colombia 2015 Ariadna Gutierrez rehearses for the upcoming Miss Universe telecast while at Planet Hollywood Resort and Casino in Las Vegas, Nevada, December 12. 2015. (Photo by Darren Decker/Reuters/The Miss Universe Organization)

Family and celebrities arrive at Kylie Jenner's 21st birthday celebration at Craig's in West Hollywood, CA on August 9, 2018. Pictured: Kim Kardashian. (Photo by Splash News and Pictures)

American singer Tinashe Jorgensen Kachingwe, known mononymously as Tinashe forgot some of her outfit for GQ's Men of the Year party in West Hollywood, California on November 17, 2022. (Photo by Sweet T./Instagram)

American model Emily Ratajkowski in the second decade of February 2023 shows off her amazing curves by posing naked for Hollywood's hottest fashion photographers, the Morelli Brothers. (Photo by The Morelli Brothers)

Scottish actress Karen Gillan (L) and guests attend the Guardians of the Galaxy Vol. 3 World Premiere at the Dolby Theatre in Hollywood, California on April 27, 2023. (Photo by Rich Polk/Getty Images for Disney)

American rapper from Memphis GloRilla attends the 2024 iHeartRadio Music Awards at Dolby Theatre on April 01, 2024 in Hollywood, California. (Photo by Frazer Harrison/Getty Images)

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)

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.