Demi Sims her older sisters Chloe and Frankie, cast members of the British television series “The Only Way Is Essex” during filming in Marbella, resort area on southern Spain’s Costa del Sol on September 17, 2019. (Photo by Beretta/Sims/Rex Features/Shutterstock)

Nora White, 6, dumps a cup of water on her sister Kennedy White, 3, at Barnett Field Splash Pad in Edmond, Okla., on Tuesday, June 25, 2024.(Photo by Bryan Terry/The Oklahoman via USA TODAY Network)

Sisters dressed as the Grady twins from the movie "The Shining" pose for a photo inside their house as they take part in the second edition of "Noche del Terror" (Horror night) during Halloween celebrations in the neighborhood of Churriana, near Malaga, southern Spain, October 31, 2015. (Photo by Jon Nazca/Reuters)

Mave Grace, 11, who had part of her arm chopped off by militiamen when they attacked the village of Tchee, stands with her sister Racahele-Ngabausi, aged two, in an Internally Displaced Camp in Bunia, Ituri province, eastern Democratic Republic of Congo, April 12, 2018. (Photo by Goran Tomasevic/Reuters)

“The National Portrait Gallery, London's annual photographic portrait prize was established in 2003 as the Schweppes Photographic Portrait Prize. In the years 2006 and 2007 it was referred to simply as the Photographic Portrait Prize, while from 2008 new sponsors have resulted in the name, Taylor Wessing Photographic Portait Prize”. – Wikipedia. Photo: “Tic Tac and Tootsie (twin sisters Carrol and Shelly McKean)”. Taylor Wessing photographic portrait prize 2010. (Photo by Jeffrey Stockbridge)

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.