Historic public water supply from fountain in old Jewish area (the Judiara), Castelo de Vide, Alto Alentejo, Portugal, Europe

Water sellers in brightly coloured costumes in the Djemma El Fna square in Marrakesh, Morocco

Tanzanian girl taking pleasure at the abundant supply of fresh, safe drinking water which now runs to her house thanks to a development project of caritas tanzania, funded by caritas australia. Mvango village, same, in the north-east near kilimanjaro

Tanzanian girl taking pleasure at the abundant supply of fresh, safe drinking water which now runs to her house thanks to a development project of caritas tanzania, funded by caritas australia. Mvango village, same, in the north-east near kilimanjaro

Tanzanian girl taking pleasure at the abundant supply of fresh, safe drinking water which now runs to her house thanks to a development project of caritas tanzania, funded by caritas australia. Mvango village, same, in the north-east near kilimanjaro

Cisterne of Habbaba, Yemen

Boy filling water into a drinking vessel, Amazon Basin, Brazil

Boy fetching water from a well, Cameroon, Africa

Boy carrying a pail of water on his head, Sahel region, Cameroon, Africa

Woman gets drinking water in the old town of Bhaktapur, Kathmandu, Nepal

Nyatapola Temple, Taumadhi Tole, old town of Bhaktapur, Kathmandu, Nepal

Water collection tower, Grosse Dhuenntalsperre dam, drinking water reservoir, Wermelskirchen, Remscheid, Bergisch Land region, North Rhine-Westphalia, Germany, Europe

Headquarters of Gelsenwasser utilities company, Gelsenkirchen, Ruhr Area, North Rhine-Westphalia, Germany, Europe

Several hands compass a ring of water

View inside one of the two underground water reservoirs of the city of Munich in Forstenrieder Park, Bavaria, Germany, Europe

Aerial view, Grosse Dhuenntalsperre dam, drinking water reservoir, Bergisches Land region, North Rhine-Westphalia, Germany, Europe

Headquarters of Gelsenwasser utilities company, Gelsenkirchen, Ruhr Area, North Rhine-Westphalia, Germany, Europe

People fetching drinking water from the Mandrare river, Madagascar, Africa

Aerial view, Grosse Dhuenntalsperre dam, drinking water reservoir, Bergisches Land region, North Rhine-Westphalia, Germany, Europe