In 1996, NOAA scientists pumped 2 dyes beneath Key Largo to learn where groundwater went; 18 days later, 2 bay-side wells showed it flowed toward the Atlantic

Research conducted on Key Largo’s groundwater flow aimed to shed light on the decline of nearby reefs. Dye tracer studies demonstrated that pollutants travel from Florida Bay into the Atlantic Ocean. This underground movement establishes a clear route for contaminants to affect coastal ecosystems. The findings underscore the vital relationship between terrestrial pollution and marine health, highlighting the necessity of addressing inland sources to safeguard reefs and their surrounding waters.
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