When Steve Davis jumped out of the airboat and into the water in the middle of the Everglades, it rose to just below his waist, higher than last year when it pooled around his knees. “I’m standing in Miami-Dade’s water supply right now,” he said. Davis, the chief science officer for the Everglades Foundation, a nonprofit dedicated to restoring the ecosystem, joined Meenakshi Chabba, the ...