A Dead Leaf butterfly (Kallima inachu formosana, also called Orange Oakleaf Butterfly) rests on a tree trunk at the Taipei Zoo in Taipei, Tawian, 03 August 2019. Dead Leaf butterfly can be found in Tropical Asia from India to Japan. When its wings close, it resembles a dead leaf, providing camouflage against predators including birds, ants, spiders and wasps. (Photo by David Chang/EPA/EFE)

A celebrant takes part in the ninth Hong Kong Buddha Sunning Festival at the Tai Mo Shan lookout on February 18, 2020 in Hong Kong, China. The global death toll from the coronavirus epidemic rose above 200, with all but five of those and the vast majority of the more-than 75,000 cases occurring on mainland China. (Photo by Billy H.C. Kwok/Getty Images)

Pictures from Tasmania’s central plateau, shot by wilderness photographer Dan Broun, show the extraordinary damage wrought by more than a week of bushfires following lightning strikes in Australia’s southernmost state on January 13. 2016. The world heritage area was home to a range of unique alpine flora including pencil pines, king billy pines and cushion plants, some more than 1,000 years old. Now more than 10,000ha of land has been incinerated, and ecologist say that, unlike eucalyptus trees, the ancient flora will not recover. (Photo by Dan Broun)

Serena Williams awaits a return with partner Venus Williams (not pictured) of the United States against Lucie Hradecka and Linda Noskova of Czech Republic during the Women’s Doubles First Round match on Day Four of the 2022 US Open at USTA Billie Jean King National Tennis Center on September 01, 2022 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Jamie Squire/Getty Images)

Roma's Gianluca Mancini scores his team's goal in the 1-0 Rome derby victory over Lazio at Stadio Olimpico in Rome, Italy on April 6, 2024. (Photo by Alberto Lingria/Reuters)

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.