NICARAGUA, South America- A standpipe glistens in the foreground as a community of Nicaraguans observe their new source of clean drinking water, provided to them by two non governmental organizations. Staff Sgt. Jon Polka, 728 Airlift Squadron, Joint Base Lewis-McChord, McChord Field, Wash., spent three weeks as a volunteer photographer for Blue Planet Network, a NGO funding organization that assists relief efforts that address the global water crisis. (Courtesy Photo/Staff Sgt. Jon Polka)
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