The Florida Everglades is the largest subtropical wetland area in the United States; overpopulation uses more of the land for both agriculture and construction, as industry increases to support the population, then water consumption increases, pollution from gases, waste and toxins increases and therefore there is an increase in carbon dioxide in the air, which in turn pollutes the water. The increase in pollution in the carbon cycle as soil and plants respire then falls as rain on the surface resulting in polluted runoff, which then promotes the growth of algae in the water. This could impact the use of water in agriculture, creating a less hospitable environment for flora and fauna, possibly resulting in animal and plant death.
