reservoir

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 Images hide caption

Despite the ongoing drought in California, the Folsom Lake reservoir is kept at only 60 percent capacity in the winter to prevent major flooding if a winter storm occurs. Some hope to prevent the waste of water by relying on more accurate weather predictions. U.S. Bureau of Reclamation hide caption