During the 20th century, several canals were dug to drain the freshwater marsh of Cape Sable. During the past century and in tandem with sea-level rise, these canals brought pronounced changes to the once exclusively freshwater environment. In an effort to stop the intrusion of salt water to Cape Sable, some of the canals have been plugged. The most recent technology was implemented in 2011 with hopes to increase resilience from sea-level rise as a result of climate change.
The Comprehensive Everglades Restoration Plan (CERP) is a multibillion dollar project authorized by Congress in the year 2000. Since then, the effort has increasingly been viewed as south Florida's preeminent adaptation strategy against climate change. Expected to take about 40 years to complete and managed by the U.S. Army Corps of Engineers and the South Florida Water Management District, CERP aspires to increase the amount of freshwater storage, improve water quality, and re-establish the natural water flow through the greater Everglades ecosystem. If successful, these efforts will help protect subterranean aquifers from salt-water intrusion, delay the impacts of sea-level rise along the coast, and buy precious time for wildlife to adapt to the changing environment.