When Shreya Ramachandran was in sixth grade, she became obsessed with water scarcity. It was an unusual preoccupation for an 11-year-old, but when visiting California's Central Valley for an archery competition, she had learned about the historic drought then underway that was devastating the area's farmers. Not long afterward, she visited her grandparents in India and encountered taxi drivers who'd been forced to abandon their farms when the annual monsoon had failed to arrive. | 
