Dropping water levels in the Zaporizhzhia region of Ukraine have exposed fishing nets and roots of aquatic plants along the shoreline of the Dnipro river. Dmytro Smoliyenko/Ukrinform/Future Publishing via Getty ImagesRussia appears to be draining an enormous reservoir in Ukraine, imperiling drinking water, agricultural production and safety at Europe's largest nuclear plant, according to satellite data obtained by NPR. The canal that provided water from mainland Ukraine to Crimea, which Ukraine blocked after Russia annexed the peninsula in 2014, is now reopened and flowing, in this photo from June 2022