Isle au Haut Charette The U.S. Man and the Biosphere Program (U.S. MAB) Human-Dominated Systems Directorate (HDS) is con- ducting an independent scientific study to define eco- logical sustainability in the context of regional, water- shed-based ecosystems, advance ecosystem management principles, and apply them to the South Florida environment. Three years of planning and research activities in- volving over 100 scientists culminated in an intensive workshop, or charette, on the South Florida/Ever- glades ecosystem from June 5-16, 1994, at Isle au Haut, Maine. The charette participants were a broadly diverse group of more than 40 natural and social scien- tists with particular exper- tise in ecosystem manage- ment of the South Florida environment. The Everglades ecosystem has become a significantly degraded remnant of the natural ecosystem. The dominant force causing this degradation is the lack of adequate quantities and timely distribution of water to match the natural cycles of the Everglades. We are faced not just with endangered species but much more critically with endangered ecosystems. The charette established a new model of human/envi- ronment interactions and developed hydrological and ecological sustainability goals for the South Florida land- scape. Scenario-consequence analyses were used to ex- amine a range of regional management options with re- spect to agricultural and ecological sustainability and the needs of urban communities. The charette reached con- sensus on ecosystem management principles and articu- lated a vision for a sustainable South Florida.