World Water Day

Tomorrow, March 22, is World Water Day, an event established by the United Nations in 1993 to highlight the challenges associated with this precious resource. Each year has a theme, and this year's is "Water and Food Security." The UN estimates that more than one in six people worldwide lack access to 20-50 liters (5-13 gallons) of safe freshwater a day to ensure their basic needs for drinking, cooking, and cleaning. And as the world's population grows beyond 7 billion, clean water is growing scarcer in densely populated areas as well as in remote villages. Collected here are recent images showing water in our lives -- how we use it, abuse it, and depend on it.

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  • Left: Daniel Dal Zennaro / ANSA via AP - Right: Alessandro Garofalo / Reuters

    Anger and Wonder on Display at Expo 2015

    Expo 2015 officially opened in Milan, Italy, on May 1. As visitors had their first views of pavilions and displays from countries and corporations around the world, thousands of "NoExpo" protesters took to the streets.

  • CC BY SA/Joe Pyrek

    The Forgotten Pyramids of Meroë

    In a desert in eastern Sudan, along the banks of the Nile River, lies a collection of nearly 200 ancient pyramids - many of them tombs of the kings and queens of the Meroitic Kingdom which ruled the area for more than 900 years.

  • Eric Thayer/ Reuters

    Photos of the Week: 4/25-5/1

    This week we have images from the disaster in Nepal, a pangolin released into the wild in Sumatra, the protests in Baltimore, a rainbow in Bolivia, unrest in Burundi, newlyweds in Egypt, May Day protests in Turkey, and much more.

  • Navesh Chitrakar / Reuters

    Rescue and Recovery in Nepal

    Five days have passed since Nepal suffered a magnitude 7.8 earthquake, and rescue teams are still discovering trapped victims alive in the rubble and rescuing them.

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