Water is the common lifeline for the natural and built environments in South Florida. Engineered flood control and water distribution systems, agriculture, growth, and development have disrupted the region's water quality, quantity, timing, and distribution (i.e., the hydropattern). Agricultural runoff and urban stormwater have introduced high levels of phosphorus, mercury, and other contaminants into the water system, polluting lakes, rivers, estuaries and the Everglades.

This report is the first in a congressionally mandated series of biennial evaluations of the progress being made by the Comprehensive Everglades Restoration Plan (CERP), a multibillion-dollar effort to restore historical water flows to the Everglades and return the ecosystem closer to its natural state, before it was transformed by drainage and by urban and agricultural development. The Restoration plan, which was launched in 1999 by the U.S. Army Corps of Engineers and the South Florida Water Management District, includes more than 40 major projects that are expected to be completed over the next three decades. The report finds that progress has been made in developing the scientific basis and management structures needed to support a massive effort to restore the Florida Everglades ecosystem. However, some important projects have been delayed due to several factors including budgetary restrictions and a project planning process that that can be stalled by unresolved scientific uncertainties. The report outlines an alternative approach that can help the initiative move forward even as it resolves remaining scientific uncertainties. The report calls for a boost in the rate of federal spending if the restoration of Everglades National Park and other projects are to be completed on schedule.

'The book provides valuable contributions on three related fronts: It places past and current debates on ecosystem restoration of the Everglades in a clear systems context that acknowledges feedback between ecosystem quality and economic growth; shows for the case of the Everglades that good intentions of providing generous financial support for restoration may lead to undesired effects that actually run counter to the original goal; and demonstrates the use of regional modeling tools to develop consistent baseline forecasts and alternative scenarios.' - Matthias Ruth, University of Maryland, College Park, US The restoration of the Florida Everglades, the largest ecosystem restoration project in the world, is now underway. Missing from the original plan, however, is a study of the region's cities and farms and the economic impact their growth will make on this already endangered ecosystem. This book provides that analysis.

The South Florida ecosystem covers about 18,000 square miles and is home to the Everglades, a national resource. Over the past 100 years, efforts to manage the flow of water through the ecosystem have jeopardized its health. In 2000, a strategy to restore the ecosystem was set; restoration was expected to take at least 40 years and cost $15.4 billion. The restoration comprises hundreds of projects, including 60 key projects known as the Comprehensive Everglades Restoration Plan (CERP), to be undertaken by a partnership of federal, state, local, and tribal governments. Given the size and complexity of the restoration, GAO was asked to report on the (1) status of project implementation and expected benefits, (2) factors that determine project sequencing, (3) amount of funding provided for the effort and extent that costs have increased, and (4) primary mathematical models that guide the restoration. GAO is recommending actions to ensure that agencies apply the established sequencing criteria when making implementation decisions for some projects and that the development of models and their interfaces is better coordinated. The agencies generally agreed with these recommendations, although the state was concerned that the first recommendation could lead to further delays and cost increases.

Although the progress of environmental restoration projects in the Florida Everglades remains slow overall, there have been improvements in the pace of restoration and in the relationship between the federal and state partners during the last two years. However, the importance of several challenges related to water quantity and quality have become clear, highlighting the difficulty in achieving restoration goals for all ecosystem components in all portions of the Everglades. Progress Toward Restoring the Everglades explores these challenges. The book stresses that rigorous scientific analyses of the tradeoffs between water quality and quantity and between the hydrologic requirements of Everglades features and species are needed to inform future prioritization and funding decisions.