Sijeong Lim

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A girl holds a hose to fill a container with water from a mobile water tank in Hyderabad, India, on Saturday. (Mahesh Kumar A./AP)

March 22 is World Water Day — an annual call to action to help the millions of people who lack access to safe water sources. Water availability is an important global policy objective, listed as U.N. Sustainable Development Goal (SDG) # 6: “ensure access to water and sanitation for all” by 2030.

But climate change is making water availability less predictable. Droughts are often followed by extreme precipitation that does not sufficiently recharge groundwater, leading to water runoff and contaminated water sources. More than 2 billion people are now living in countries experiencing high water stress.

Arguably, technology can address water collection and distribution issues.…  Seguir leyendo »