- Restoration of the Everglades
The restoration of the Everglades is an ongoing effort to remedy damage inflicted on the environment of southern Florida during the 20th century. As of 2008, it is the most expensive and comprehensive environmental repair attempt in history. [Grunwald, p. 2.] [Schmitt, Eric (October 20, 2000). " [http://query.nytimes.com/gst/fullpage.html?res=9D02E3DF103EF933A15753C1A9669C8B63&scp=1&st=nyt Everglades Restoration Plan Passes House, With Final Approval Seen] ", "The New York Times", p. 1.] The degradation of the
Evergladesbecame an issue in the United States in the early 1970s after a proposal to construct a jetport in the Big Cypress Swamp. Studies indicated the jetport would have destroyed the ecosystem in South Florida and Everglades National Park. [J. V. F. (October, 1969). "Special Feature: Recent Developments in Everglades Controversy", "BioScience", 19 (10), pp. 926–927.] After decades of destructive practices, both state and federal agencies are looking for ways to balance the needs of the natural environment in South Florida with urban and agricultural centers that have recently and rapidly grown in the Everglades.
In response to floods caused by hurricanes in 1947, the Central and Southern Florida Flood Control Project (C&SF) was established to construct flood control devices in the Everglades. The C&SF built convert|1400|mi|km of canals and levees between the 1950s and 1971 throughout South Florida. Their last venture was the C-38 canal, which straightened the
Kissimmee Riverand caused catastrophic damage to animal habitats, adversely affecting water quality in the region. The canal became the first C&SF project to be reverted when the convert|22|mi|km|adj=on canal began to be backfilled, or refilled with the material excavated from it, in the 1980s. The restoration of the Kissimmee River is projected to continue until 2011.
When high levels of
phosphorusand mercury were discovered in these waterways in 1986, water quality became a focus for water management agencies. Costly and lengthy court battles were waged between various government entities to determine who was responsible for monitoring and enforcing water quality standards. Governor Lawton Chilesproposed a bill that determined which agencies would have that responsibility, and set deadlines for pollutant levels to decrease in water. Initially the bill was criticized by conservation groups for not being strict enough on polluters, but the Everglades Forever Act was passed in 1994. Since then, the South Florida Water Management District(SFWMD) and the U.S. Army Corps of Engineershave surpassed expectations for achieving lower phosphorus levels.
A commission appointed by Governor Chiles published a report in 1995 stating that South Florida was unable to sustain its growth, and the deterioration of the environment was negatively affecting daily life for residents in South Florida. The environmental decline was predicted to harm tourism and commercial interests if no actions were taken to halt current trends. Results of an eight-year study that evaluated the C&SF were submitted to the U.S. Congress in 1999. The report warned that if no action was taken the region would rapidly deteriorate. A strategy called the
Comprehensive Everglades Restoration Planwas attached to restore portions of the Everglades, Lake Okeechobee, the Caloosahatchee River, and Florida Bayto undo the damage of the past 50 years. It would take 30 years and cost $7.8 billion to complete. Though the plan was passed into law in 2000, it has been compromised by politics and funding problems.
Everglades National Park.]
The Everglades are part of a large watershed that begins in the vicinity of Orlando. The Kissimmee River drains into Lake Okeechobee, a convert|730|sqmi|km2|adj=on lake with an average depth of convert|9|ft|m. During the wet season when the lake exceeds its capacity, the water leaves the lake in a very wide and shallow river, approximately convert|100|mi|km long and convert|60|mi|km wide. [Lodge, p. 20.] This wide and shallow flow is known as "sheetflow". The land gradually slopes toward Florida Bay, the historical destination of most of the water leaving the Everglades. Before drainage attempts, the Everglades comprised convert|4000|sqmi|km2, taking up a third of the Florida peninsula. [Lodge, p. 14.]
Since the early 1800s the Everglades have been a subject of interest for agricultural development. The first attempt to drain the Everglades occurred in 1882 when a
Pennsylvanialand developer named Hamilton Disstonconstructed the first canals. Though these attempts were largely unsuccessful, Disston's purchase of land spurred tourism and real estate development of the state. The political motivations of Governor Napoleon Bonaparte Browardresulted in more successful attempts at canal construction between 1906 and 1920. Recently reclaimed wetlands were used for cultivating sugarcaneand vegetables, while urban development began in the Everglades.Dovell, Junius (July 1948). "The Everglades: A Florida Frontier", "Agricultural History" 22 (3), pp. 187–197.]
1926 Miami Hurricaneand the 1928 Okeechobee Hurricanecaused widespread devastation and flooding which prompted the Army Corps of Engineersto construct a dike around Lake Okeechobee. The four-story wall cut off water from the Everglades. Floods from hurricanes in 1947 motivated the U.S. Congressto establish the Central and Southern Florida Flood Control Project (C&SF), responsible for constructing convert|1400|mi|km of canals and levees, hundreds of pumping stations and other water control devices. The C&SF established Water Conservation Areas (WCAs) in 37% of the original Everglades, which acted as reservoirs providing excess water to the South Florida metropolitan area, or flushing it into the Atlantic Ocean or the Gulf of Mexico. [Light, Stephen, J. Walter Dineen "Water Control in the Everglades: A Historical Perspective" in "Everglades : The Ecosystem and its Restoration", Steven Davis and John Ogden, eds. (1994), St. Lucie Press. ISBN 0963403028] The C&SF also established the Everglades Agricultural Area (EAA), which grows the majority of sugarcane crops in the United States. When the EAA was first established, it encompassed approximately 27% of the original Everglades.
By the 1960s, urban development and agricultural use had decreased the size of the Everglades considerably. The remaining 25% of the Everglades in its original state is protected in
Everglades National Park, but the park was established before the C&SF, and it depended upon the actions of the C&SF to release water. As Miami and other metropolitan areas began to intrude on the Everglades in the 1960s, political battles were taking place between park management and the C&SF when insufficient water in the park threw ecosystems into chaos. Fertilizers used in the EAA began to alter soil and hydrologyin Everglades National Park, causing the proliferation of exotic plant species. [Snyder G.H., J. Davidson, "Everglades Agriculture: Past, Present and Future" in "Everglades: The Ecosystem and its Restoration", Steven Davis and John Ogden, eds. (1994), St. Lucie Press. ISBN 0963403028] However, it was a proposition to build a massive jetport in the Big Cypress Swamp in 1969 that focused attention on the degraded natural systems in the Everglades. For the first time, the Everglades became a subject of environmental conservation. [Mueller, Marti (October 10, 1969). "Everglades Jetport: Academy Prepares a Model", "Science", New Series, 166 (3902), pp. 202–203.]
Everglades as a priority
In the 1970s protecting the environment became a national priority. "
Time" magazine declared it the Issue of the Year in January 1971, reporting that it was rated as Americans' "most serious problem confronting their community—well ahead of crime, drugs and poor schools". [cite news
title = Issue of the Year: The Environment
work = Time
date = 1971-01-04
url = http://www.time.com/time/magazine/article/0,9171,942377,00.html
accessdate = 2008-05-20] South Florida became a poignant subject when the region experienced a severe drought from 1970 to 1975: Miami received only convert|33|in|mm of rain in 1971—convert|22|in|cm fewer than average.Gunderson, Lance, et al (1995). "Lessons from the Everglades", "BioScience", 45, Supplement: Science and Biodiversity Policy, pp. S66-S73.] With the assistance of governor's aide Nathaniel Reed and
U.S. Fish and Wildlife Servicebiologist Arthur R. Marshall, politicians began to take action on the Everglades. Governor Reubin Askewimplemented the Land Conservation Act in 1972, which allowed the state to use voter-approved bonds of $240 million to purchase land considered to be environmentally unique and irreplaceable.cite web
title = History
work = Fakahatchee State Preserve
publisher = Friends of Fakahatchee State Preserve
year = 2005
url = http://friendsoffakahatchee.org/history.php
accessdate = 2008-05-20] Since then, Florida has purchased more land for public use than any other state. [Grunwald, p. 262] In 1972 President
Richard Nixondeclared the Big Cypress Swamp—the intended location for the Miami jetport in 1969—to be federally protected. [cite web
last = Nixon
first = Richard
title = 51 - Special Message to the Congress Outlining the 1972 Environmental Program
work = The American Presidency Project
date = February 8, 1972
url = http://www.presidency.ucsb.edu/ws/index.php?pid=3731
accessdate = 2008-05-10]
Big Cypress National Preservewas established in 1974, [cite web
title = Laws & Policies
work = Big Cypress National Preserve
publisher = National Park Service
date = April 20, 2008
url = http://www.nps.gov/bicy/parkmgmt/lawsandpolicies.htm
accessdate = 2008-05-20] and
Fakahatchee Strand State Preservewas created the same year. In 1976, Everglades National Park was declared an International Biosphere Reserveby UNESCO, [cite web
title = Everglades National Park, Florida, United States of America
publisher = United Nations Environment Program
month = March | year = 2003
url = http://www.unep-wcmc.org/sites/wh/everglad.html
accessdate = 2008-05-19] who also listed the park as a
World Heritage Sitein 1979. The Ramsar Conventiondesignated the Everglades a Wetland of International Importance in 1987. [cite web
title = Park Statistics
work = Everglades National Park
publisher = National Park Service
date = July 24, 2006
url = http://www.nps.gov/ever/parknews/parkstatistics.htm
accessdate = 2008-05-21] Only two other locations on earth have appeared on all three lists:
Lake Ichkeulin Tunisiaand Srebarna Lakein Bulgaria. [Maltby, E., P.J. Dugan, "Wetland Ecosystem Management, and Restoration: An International Perspective" in Everglades: The Ecosystem and its Restoration, Steven Davis and John Ogden, eds. (1994), St. Lucie Press. ISBN 0963403028]
In the 1960s, the C&SF came under increased scrutiny from government overseers and conservation groups. Critics maintained its size was comparable to the
Tennessee Valley Authority's dam-building projects during the Great Depression, and that its projects had run into the billions of dollars without any apparent resolution or plan. [Davis, Jack (January 2003). "'Conservation is now a dead word': Marjory Stoneman Douglas and the transformation of American environmentalism." "Environmental History", 8 (1) pp. 53&-76.] The projects of the C&SF have been characterized as part of "crisis and response" cycles that "ignored the consequence for the full system, assumed certainty of the future, and succeeded in solving the momentary crisis, but set in motion conditions that exaggerate future crises".Holling, C.S. "The Structure and Dynamics of the Everglades System:Guidelines for Ecosystem Restoration" in "Everglades : The Ecosystem and its Restoration", Steven Davis and John Ogden, eds. (1994), St. Lucie Press. ISBN 0963403028] The last project began in 1962: it was to build a canal to straighten the winding floodplain of the Kissimmee River, that had historically fed Lake Okeechobeewhich in turn fed the Everglades. Marjory Stoneman Douglaslater wrote that the C&SF projects were "interrelated stupidity", crowned by the C-38 canal, completed in 1971. [Douglas (1987), p. 229.] The canal, which aimed to replace a meandering convert|90|mi|km|adj=on river with a convert|52|mi|km|adj=on channel, cost $29 million, and supplanted approximately convert|45000|acre|km2 of marshland with retention ponds, dams, and vegetation.cite web
title = Environmental Setting: The Altered System
work = Circular 1134
publisher = U.S. Geological Survey
date = November 2, 2004
url = http://sofia.usgs.gov/publications/circular/1134/esas/index.html
accessdate = 2008-05-19] Due to loss of habitat, the region experienced a drastic loss of waterfowl, wading birds, and game fish. [cite web
title = Kissimmee River Restoration
publisher = Army Corps of Engineers Jacksonville District
url = http://www.saj.usace.army.mil/dp/krr/index.htm
accessdate = 2008-05-19] The reclaimed floodplains were taken over by agriculture, bringing fertilizers and insecticides that washed into Lake Okeechobee. Even before the canal was finished, conservation organizations and sport fishing and hunting groups were calling for the restoration of the Kissimmee River.
Arthur R. Marshall led the efforts to undo the damage. According to Douglas, Marshall was successful in portraying the Everglades from the Kissimmee Chain of Lakes to
Florida Bay, including the atmosphere, climate, and limestone, as a single organism. Rather than remaining the preserve of conservation organizations, the cause of restoring the Everglades became a priority for politicians. Douglas observed, "Marshall accomplished the extraordinary magic of taking the Everglades out of the bleeding-hearts category forever". [Douglas (1987), p. 227.] His efforts led to recognition, and Arthur R. Marshall's name would eventually grace a national wildlife refuge in Palm Beach County and an endowed chair at the University of Florida.cite web|author=George A. Smathers Libraries|url=http://web.uflib.ufl.edu/spec/manuscript/guides/Marshall.htm|title=A Guide to the Arthur R. Marshall, Jr. Papers|accessdate=2008-05-25] At the insistent urging of Marshall, newly elected Governor Bob Grahamannounced the formation of the "Save Our Everglades" campaign in 1983, and in 1985 Graham lifted the first shovel of backfill for a portion of the C-38 canal.cite news
last = Angier
first = Natalie
title = Now You See It, Now You Don't
work = Time
date = 1984-08-06
url = http://www.time.com/time/magazine/article/0,9171,921744,00.html
accessdate = 2008-05-20] Within a year the area was covered with water—returning to its original state. [Douglas (1987), p. 232.] Graham declared that by the year 2000, the Everglades would resemble its predrainage state as much as possible. In 1992, the Kissimmee River Restoration Project was approved by Congress in the
Water Resources Development Act. The project was estimated to cost $578 million to convert only convert|22|mi|km of the canal; the cost was designed to be divided between the State of Florida and the U.S. government, with the state being responsible for purchasing land to be restored.cite web
title = Kissimee River History
publisher = Florida Department of Environmental Protection
year = 2006
url = http://www.dep.state.fl.us/evergladesforever/about/history.htm
accessdate = 2008-05-19] A project manager for the Army Corps of Engineers explained in 2002, "What we're doing on this scale is going to be taken to a larger scale when we do the restoration of the Everglades".Morgan, Curtis (December 15, 2002). "Florida's Kissimmee River Begins to Recover from Man-Made Damage", "The Miami Herald" ] The entire project is estimated to be completed by 2011.
Attention to water quality was focused in South Florida in 1986 when a widespread
algal bloomoccurred in one-fifth of Lake Okeechobee. The bloom was discovered to be the result of fertilizers from the Everglades Agricultural Area. [Lodge, p. 230.] Although laws stated in 1979 that the chemicals used in the EAA should not be deposited into the lake, they were flushed into the canals that fed the Everglades Water Conservation Areas, and eventually pumped into the lake. Microbiologists discovered that, although phosphorus assists plant growth, it destroys periphyton, one of the basic building blocks of marlin the Everglades. Marl is one of two types of Everglades soil, along with peat; it is found where parts of the Everglades are flooded for shorter periods of time as layers of periphyton dry. [Lodge, p. 37.] Most of the phosphorus compounds also rid peat of dissolved oxygen and promote algae growth, causing native invertebrates to die, and sawgrass to be replaced with invasive cattails that grow too tall and thick for birds and alligators to nest in. [Davis, Steven. "Phosphorus Inputs and Vegetation Sensitivity in the Everglades" in "Everglades: The Ecosystem and its Restoration", Steven Davis and John Ogden, eds. (1994), St. Lucie Press. ISBN 0963403028] Tested water showed 500 parts per billion (ppb) of phosphorus near sugarcane fields. State legislation in 1987 mandated a 40% reduction of phosphorusby 1992.
The sugarcane industry, dominated by two companies named U.S. Sugar and Flo-Sun, was responsible for more than half of the crop in the EAA. They were well-represented in state and federal governments by
lobbyists who enthusiastically protected their interests. The Audubon Society pointed out that the sugar industry, nicknamed "Big Sugar", donated more money to political parties and candidates than General Motors. [Grunwald, p. 282.] The sugar industry attempted to block government-funded studies of polluted water, and when the federal prosecutor in Miami faulted the sugar industry in legal action to protect Everglades National Park, Big Sugar tried to get the lawsuit withdrawn and the prosecutor fired. [Grunwald, pp. 286–287.] A costly legal battle ensued from 1988 to 1992 between the State of Florida, the U.S. government, and the sugar industry to resolve who was responsible for water quality standards, the maintenance of Everglades National Park and the Arthur R. Marshall Loxahatchee National Wildlife Refuge.
A different concern about water quality arose when mercury was discovered in fish during the 1980s. Because mercury is damaging to people, warnings were posted for fishermen that cautioned against eating fish caught in South Florida, and scientists became alarmed when a Florida panther was found dead near Shark River Slough with mercury levels high enough to be fatal to humans.Lodge, pp. 231–233.] When mercury is ingested it adversely affects the central nervous system, and can cause brain damage and birth defects. [cite web
title = Mercury Studies in the Florida Everglades
work = FS-166-96
publisher = U.S. Geological Survey
date = November 9, 2004
url = http://sflwww.er.usgs.gov/publications/fs/166-96/
accessdate = 2008-06-01] Studies of mercury levels found that it is
bioaccumulated through the food chain: animals that are lower on the chain have decreased amounts, but as larger animals eat them, the amount of mercury is multiplied. The dead panther's diet consisted of small animals, including raccoons and young alligators. The source of the mercury was found to be waste incinerators and fossil fuelpower plants that expelled the element in the atmosphere, which precipitated along with rain, or in the dry season, dust. Naturally occurring bacteria in the Everglades that function to reduce sulfuralso transform mercury deposits into methylmercury. This process was more dramatic in areas where flooding was not as prevalent. Due to requirements that reduced power plant and incinerator emissions, the levels of mercury found in larger animals decreased as well: approximately a 60% decrease in fish and a 70% decrease in birds, though some levels still remain a health concern for people.
Everglades Forever Act
In an attempt to resolve the political quagmire over water quality, Governor
Lawton Chilesintroduced a bill in 1994 to clean up water within the EAA that was being released to the lower Everglades. The bill stated that the "Everglades ecosystem must be restored both in terms of water quality and water quantity and must be preserved and protected in a manner that is long term and comprehensive".cite web
title = Florida Statutes (Supplement 1994) [Everglades Forever Act]
work = Chapter 373: Water Resources, Part IV. Management and Storage of Surface Waters, 373.4592 Everglades improvement and management.
University of MiamiSchool of Law
year = 1997
url = http://exchange.law.miami.edu/everglades/statutes/state/florida/E_forever.htm
accessdate = 2008-05-21] It ensured the
Florida Department of Environmental Protection(DEP) and the South Florida Water Management District(SFWMD) would be responsible for researching water quality, enforcing water supply improvement, controlling exotic species, and collecting taxes, with the aim of decreasing the levels of phosphorus in the region. It allowed for purchase of land where pollutants would be sent to "treat and improve the quality of waters coming from the EAA".cite web
last = Alexa
first = Micheal
coauthors = D'Isernia, Luke; Minton, Laura; Miller, Dulcy; Corbett, Sarah
title = Handbook of Florida Water Regulation: Florida Everglades Forever Act
work = Chapter 373: Water Resources, Part IV. Management and Storage of Surface Waters, 373.4592 Everglades improvement and management.
University of FloridaInstitute of Food and Agricultural Science
url = http://edis.ifas.ufl.edu/FE609
accessdate = 2008-05-21]
Critics of the bill argued that the deadline for meeting the standards was unnecessarily delayed until 2006—a period of 12 years—to enforce better water quality. They also maintained that it did not force sugarcane farmers, who were the primary polluters, to pay enough of the costs, and increased the threshold of what was an acceptable amount of phosphorus in water from 10 ppb to 50 ppb.Grunwald, p. 301.] Governor Chiles initially named it the Marjory Stoneman Douglas Act, but Douglas was so unimpressed with the action it took against polluters that she wrote to Chiles and demanded her name be stricken from it. Despite criticism, the Florida legislature passed the Act in 1994. The SFWMD stated that its actions have exceeded expectations earlier than anticipated, [cite web
title = Long Term Plan Overview
publisher = South Florida Water Management District
year = 2008
url = https://my.sfwmd.gov/portal/page?_pageid=2294,4946718,2294_4946541:2294_4946386&_dad=portal&_schema=PORTAL
accessdate = 2008-05-21] by creating Stormwater Treatment Areas (STA) within the EAA that contain a calcium-based substance such as lime rock layered between peat, and filled with
calcareousperiphyton. Early tests by the Army Corps of Engineers revealed this method reduced phosphorus levels from 80 ppb to 10 ppb. [cite web
title = Periphyton-based Stormwater Treatment Area (PSTA) Technology
publisher = The Journey to Restore America's Everglades
month = December | year = 2003
url = http://www.evergladesplan.org/docs/fs_psta_hires.pdf
format = pdf
accessdate = 2008-05-22] The STAs are intended to treat water until the phosphorous levels are low enough to be released into the Loxahatchee National Wildlife Refuge or other WCAs.
The intrusion of urban areas into wilderness has had a substantial impact on wildlife, and several species of animals are considered endangered in the Everglades region. One animal that has benefited from endangered species protection is the American Alligator ("
Alligator mississippiensis"), whose holes give refuge to other animals, often allowing many species to survive during times of drought. Once abundant in the Everglades, the alligator was listed as an endangered species in 1967, but a combined effort by federal and state organizations and the banning of alligator huntingallowed it to rebound; it was pronounced fully recovered in 1987 and is no longer an endangered species. [cite web |url=http://www.fws.gov/species/species_accounts/bio_alli.html |title=American Alligator, Wildlife Species Information |publisher= United States Fish and Wildlife Service|accessdate=2008-07-12 |work=www.fws.gov |year=2008 |month=February] However, alligators' territories and average body masses have been found to be generally smaller than in the past, and because populations have been reduced, their role during droughts has become limited. [Lodge, p. 236.]
The American Crocodile ("
Crocodylus acutus") is also native to the region and has been designated as endangered since 1975. Unlike their relatives the alligators, crocodiles tend to thrive in brackish or salt-water habitats such as estuarineor marine coasts. Their most significant threat is disturbance by people. Too much contact with humans causes females to abandon their nests, and males in particular are often victims of vehicle collisions while roaming over large territories and attempting to cross U.S. 1 and Card Sound Road in the Florida Keys. There are an estimated 500 to 1,000 crocodiles in southern Florida. [cite web | title = American Crocodile | work = Multi-Species Recovery Plan for South Florida | publisher = U.S. Fish & Wildlife Service | url = http://www.fws.gov/verobeach/images/pdfLibrary/amcr.pdf | format = pdf | accessdate = 2008-05-24]
critically endangeredof any animal in the Everglades region is the Florida panther (" Puma concolor coryi"), a species that once lived throughout the southeastern United States: there were only 25–30 in the wild in 1995. The panther is most threatened by urban encroachment, because males require approximately convert|200|sqmi|km2 for breeding territory. A male and two to five females may live within that range. When habitat is lost, panthers will fight over territory. After vehicle collisions, the second most frequent cause of death for panthers is intra-species aggression. In the 1990s urban expansion crowded panthers from southwestern Florida as Naples and Ft. Myers began to expand into the western Everglades and Big Cypress Swamp. Agencies such as the Army Corps of Engineers and the U.S. Fish and Wildlife Servicewere responsible for maintaining the Clean Water Actand the Endangered Species Act, yet still approved 99% of all permits to build in wetlands and panther territory. [Grunwald, p. 293.] A limited genetic pool is also a danger. Biologists introduced eight female Texas cougars (" Puma concolor") to diversify genes, and there are between 80 and 100 panthers in the wild as of 2008.cite web | title = Florida Panther Frequently Asked Questions | work = Florida Panther National Wildlife Refuge | publisher = U.S. Fish & Wildlife Service | url = http://www.fws.gov/floridapanther/panther_faq.html | accessdate = 2008-05-24]
Perhaps the most dramatic loss of any group of animals has been to wading birds. Their numbers were estimated by eyewitness accounts to be approximately 2.5 million in the late 19th century. However, snowy egrets ("
Egretta thula"), roseate spoonbills (" Platalea ajaja"), and reddish egrets (" Egretta rufescens") were hunted to the brink of extinction for the colorful feathers used in women's hats. After about 1920 when the fashion passed, their numbers returned in the 1930s, but over the next 50 years actions by the C&SF further disturbed populations. When the canals were constructed, natural water flow was restricted from the mangrove forests near the coast of Florida Bay. From one wet season to the next, fish were unable to reach traditional locations to repopulate when water was withheld by the C&SF. Birds were forced to fly farther from their nests to forage for food. By the 1970s, bird numbers had decreased 90%. Many of the birds moved to smaller colonies in the WCAs to be closer to a food source, making them more difficult to count. Yet they remain significantly fewer in number than before the canals were constructed. [Bancroft, G. Thomas, et al. "Relationships among Wading Bird Foraging Patterns, Colony Locations, and Hydrology in the Everglades", in "Everglades: The Ecosystem and its Restoration", Steven Davis and John Ogden, eds. (1994), St. Lucie Press. ISBN 0963403028 ] [Lodge, pp. 233–234.]
Around 6 million people moved to South Florida between 1940 and 1965. With a thousand people moving to Miami each week, urban development quadrupled. [Grunwald, p. 229.] As the human population grew rapidly, the problem of exotic plant and animal species also grew. Many species of plants were brought in to South Florida from Asia, Central America, or Australia as decorative landscaping. Exotic animals imported by the pet trade have escaped or been released. Biological controls that keep invasive species smaller in size and fewer in number in their native lands often do not exist in the Everglades, and they compete with the embattled native species for food and space. Of imported plant species, melaleuca trees ("
Melaleuca quinquenervia") have caused the most problems. Melaleucas grow on average convert|100|ft|m in the Everglades, as opposed to convert|25|to|60|ft|m in their native Australia. They were brought to southern Florida as windbreaks and deliberately seeded in marsh areas because they absorb vast amounts of water. In a region that is regularly shaped by fire, melaleucas are fire-resistant and their seeds are more efficiently spread by fire. They are too dense for wading birds with large wingspans to nest in, and they choke out native vegetation. [Lodge, pp. 237–240.] Costs of controlling melaleucas topped $2 million in 1998 for Everglades National Park. In Big Cypress National Preserve, melaleucas covered convert|186|sqmi|km2 at their most pervasive in the 1990s. [Tasker, Georgia (August 22, 1998). "Federal Experts Warn of Alien Plant Invasion", "The Miami Herald".]
Brazilian pepper ("
Schinus terebinthifolius") was brought to Southern Florida as an ornamental shrub and was dispersed by the droppings of birds and other animals that ate its bright red berries. It thrives on abandoned agricultural land growing in forests too dense for wading birds to nest in, similar to melaleucas. It grows rapidly especially after hurricanes and has invaded pineland forests. Following Hurricane Andrew, scientists and volunteers cleared damaged pinelands of Brazilian pepper so the native trees would be able to return to their natural state. [Lodge, p. 241.]
The species that is causing the most impediment to restoration is the Old World climbing fern ("
Lygodium microphyllum"), introduced in 1965. The fern grows rapidly and thickly on the ground, making passage for land animals such as black bears and panthers problematic. The ferns also grow as vines into taller portions of trees, and fires climb the ferns in "fire ladders" to scorch portions of the trees that are not naturally resistant to fire. [Lodge, p. 242.]
Several animal species have been introduced to Everglades waterways. Many tropical fish are released, the most detrimental being the blue tilapia ("
Oreochromis aureus"), which builds large nests in shallow waters. Tilapia also consume vegetation which would normally be used by young native fishes for cover and protection. [Lodge, pp. 243–244.]
Reptiles have a particular affinity for the South Florida ecosystem. Virtually all lizards appearing in the Everglades have been introduced, such as the brown anole ("
Anolis sagrei") and the tropical house gecko (" Hemidactylus mabouia"). The herbivorous green iguana (" Iguana iguana") can reproduce rapidly in wilderness habitats. However, the reptile that has earned media attention for its size and potential to harm children and domestic pets is the Burmese python (" Python molurus bivittatus"), which has spread quickly throughout the area. The python can grow up to convert|20|ft|m long and competes with alligators for the top of the food chain. [Lodge, p. 244.]
Though exotic birds such as parrots and parakeets are also found in the Everglades, their impact is negligible. Conversely, perhaps the animal that causes the most damage to native wildlife is the domestic or feral cat. Across the U.S., cats are responsible for approximately a billion bird deaths annually. They are estimated to number 640 per square mile; cats living in suburban areas have devastating effects on migratory birds and marsh rabbits. [Lodge, pp. 244–245.]
Homestead Air Force Base
Hurricane Andrewstruck Miami in 1992, with catastrophic damage to Homestead Air Force Basein Homestead. A plan to rejuvenate the property in 1993 and convert it into a commercial airport was met with enthusiasm from local municipal and commercial entities hoping to recoup $480 million and 11,000 jobs lost in the local community by the destruction and subsequent closing of the base. [cite news
title = Call for Environmental Study Delays Plan for a Florida Airport
work = The New York Times
date = December 25, 1997
url = http://query.nytimes.com/gst/fullpage.html?res=9E04E0DD113EF936A15751C1A961958260
accessdate = 2008-06-03] On March 31, 1994, the base was designated as an
Air Reserve Base, functioning only part-time. [cite web
title = History of Homestead Air Force Base
publisher = United States Air Force
year = 2008
url = http://www.homestead.afrc.af.mil/library/factsheets/factsheet.asp?id=3401
accessdate = 2008-05-23.] A cursory environmental study performed by the Air Force was deemed insufficient by local conservation groups, who threatened to sue in order to halt the acquisition when estimates of 650 flights a day were projected. Groups had previously been alarmed in 1990 by the inclusion of Homestead Air Force Base on a list of the U.S. Government's most polluted properties. [Zaneski, Cyril (August 24, 1998). "New Environmental Study Begins on Homestead, Fla., Airport Project", "The Miami Herald".] Their concerns also included noise, and the inevitable collisions with birds using the mangrove forests as rookeries. The air force base is located between Everglades National Park and
Biscayne National Park, giving it the potential to cause harm to both. In 2000, Secretary of the Interior Bruce Babbittand the director of the U.S. Environmental Protection Agencyexpressed their opposition to the project, despite other Clinton Administration agencies previously working to ensure the base would be turned over to local agencies quickly and smoothly as "a model of base disposal". [Zaneski, Cyril (January 8, 2000). "Plans for Airport at Former Homestead, Fla., Air Force Base Grounded", "The Miami Herald".] [Morgan, Curtis (January 6, 2001). "Miami-Area Officials' Plans for Air Force Base May Be Disrupted", "The Miami Herald".] Although attempts were made to make the base more environmentally friendly, in 2001 local commercial interests promoting the airport lost federal support.
Comprehensive Everglades Restoration Plan
Sustainable South Florida
Despite the successes of the Everglades Forever Act and the decreases in mercury levels, the focus intensified on the Everglades in the 1990s as quality of life in the South Florida metropolitan areas diminished. It was becoming clear that urban populations were consuming increasingly unsustainable levels of natural resources. A report entitled "The Governor's Commission for a Sustainable South Florida", submitted to Lawton Chiles in 1995, identified the problems the state and municipal governments were facing. The report remarked that the degradation of the natural quality of the Everglades, Florida Bay, and other bodies of water in South Florida would cause a significant decrease in tourism (12,000 jobs and $200 million annually) and income from compromised commercial fishing (3,300 jobs and $52 million annually).cite web
title = Chapter 1: Background and understanding
work = The Governor's Commission for a Sustainable South Florida
publisher = State of Florida
date = October 1, 1995
url = http://dlis.dos.state.fl.us/fgils/agencies/sust/tocs.html
accessdate = 2008-05-23] The report noted that past abuses and neglect of the environment had brought the region to "a precipitous juncture" where the inhabitants of South Florida faced health hazards in polluted air and water; furthermore, crowded and unsafe urban conditions hurt the reputation of the state. It noted that though the population had increased by 90% over the previous two decades, registered vehicles had increased by 166%. On the quality and availability of water, the report stated, " [The] frequent water shortages ... create the irony of a natural system dying of thirst in a subtropical environment with over 53 inches of rain per year".
Restoration of the Everglades, however, briefly became a
bipartisancause in national politics. A controversial penny-a-pound (2 cent/kg) tax on sugar was proposed to fund some of the necessary changes to be made to help decrease phosphorus and make other improvements to water. State voters were asked to support the tax, and environmentalists paid $15 million to encourage the issue. Sugar lobbyists responded with $24 million in advertising to discourage it and succeeded; it became the most expensive ballot issue in state history.cite news
last = Kennedy
first = John
coauthors = Deslatte, Aaron
title = Big sugar took its lumps, then dealt
work = The Orlando Sentinel
date = 2008-06-29
url = http://www.orlandosentinel.com/news/local/state/orl-glades2908jun29,0,1040699.story?track=rss
accessdate = 2008-06-29] How restoration might be funded became a political battleground and seemed to stall without resolution. However, in the 1996 election year, Republican senator
Bob Doleproposed that Congress give the State of Florida $200 million to acquire land for the Everglades. Democratic Vice President Al Gorepromised the federal government would purchase convert|100000|acre|km2 of land in the EAA to turn it over for restoration. Politicking reduced the number to convert|50000|acre|km2, but both Dole's and Gore's gestures were approved by Congress. [Grunwald, pp. 311–313.]
Central and South Florida Project Restudy
As part of the Water Resources Development Act of 1992, Congress authorized an evaluation of the effectiveness of the Central and Southern Florida Flood Control Project. A report known as the "Restudy", written by the U.S. Army Corps of Engineers and the South Florida Water Management District, was submitted to Congress in 1999. It cited indicators of harm to the system: a 50% reduction in the original Everglades, diminished water storage, harmful timing of water release, an 85 to 90% decrease in wading bird populations over the past 50 years, and the decline of output from commercial fisheries. Bodies of water including
Lake Okeechobee, the Caloosahatchee River, St. Lucie estuary, Lake Worth Lagoon, Biscayne Bay, Florida Bay, and the Everglades reflected drastic water level changes, hypersalinity, and dramatic changes in marine and freshwater ecosystems. The Restudy noted the overall decline in water quality over the past 50 years was due to loss of wetlands that act as filters for polluted water. [US Army COE and SFWMD, p. iii.] It predicted that without intervention the entire South Florida ecosystem would deteriorate. Canals took roughly convert|170|e9USgal of water to the Atlantic Ocean or Gulf of Mexico daily, so there was no opportunity for water storage, yet flooding was still a problem. [Tibbetts, John (August, 2000). "Making Amends: Ecological Restoration in the United States", "Environmental Health Perspectives", 108 (8), pp. A356–A361.] Without changes to the current system, the Restudy predicted water restrictions would be necessary every other year, and annually in some locations. It also warned that revising some portions of the project without dedicating efforts to an overall comprehensive plan would be insufficient and probably detrimental. [US Army COE and SFWMD, pp. iv–v.]
After evaluating ten plans, the Restudy recommended a comprehensive strategy that would cost $7.8 billion over 20 years. The plan advised taking the following actions:
* Create surface water storage reservoirs to capture convert|1500000|acre ft|km3 of water in several locations taking up convert|181300|acre|km2.US Army COE and SFWMD, p. vii.]
* Create water preserve areas between Miami-Dade and Palm Beach and the eastern Everglades to treat runoff water.
* Manage Lake Okeechobee as an ecological resource to avoid the drastic rise and fall of water levels in the lake that are harmful to aquatic plant and animal life and disturb the lake sediments.
* Improve water deliveries to estuaries to reduce the rapid discharge of excess water to the Caloosahatchee and St. Lucie estuaries that upset nutrient balances and cause lesions on fish. Stormwater discharge would be sent instead to reservoirs.US Army COE and SFWMD, p. viii.]
* Increase underground water storage to hold convert|16|e9USgal a day in wells, or reservoirs in the
Floridan Aquifer, to be used later in dry periods, in a method called AquiferStorage and Recovery (ASR).
* Construct treatment wetlands as Stormwater Treatment Areas throughout convert|35600|acre|km2, that would decrease the amount of pollutants in the environment.
* Improve water deliveries to the Everglades by increasing them at a rate of approximately 26% into Shark River Slough.
* Remove barriers to sheetflow by destroying or removing convert|240|mi|km of canals and levees, specifically removing the Miami Canal and reconstructing the
Tamiami Trailfrom a highway to culverts and bridges to allow sheetflow to return to a more natural rate of water flow into Everglades National Park.US Army COE and SFWMD, p. ix.]
* Store water in quarries and reuse wastewater by employing existing quarries to supply the South Florida metropolitan area as well as Florida Bay and the Everglades. Construct two wastewater treatment plants capable of discharging convert|22|e9USgal a day to recharge the
The implementation of all of the advised actions, the report stated, would "result in the recovery of healthy, sustainable ecosystems throughout south Florida". [US Army COE and SFWMD, p. x.] The report admitted that it did not have all the answers, though no plan could.US Army COE and SFWMD, p. xi.] However, it predicted that it would restore the "essential defining features of the pre-drainage wetlands over large portions of the remaining system", that populations of all animals would increase, and animal distribution patterns would return to their natural states. Critics expressed concern over some unused technology; scientists were unsure if the quarries would hold as much water as was being suggested, and whether the water would harbor harmful bacteria from the quarries. Overtaxing the aquifers was another concern—it was not a technique that had been previously attempted. [Grunwald, p. 319.]
Though it was optimistic, the Restudy noted,
It is important to understand that the 'restored' Everglades of the future will be different from any version of the Everglades that has existed in the past. While it certainly will be vastly superior to the current ecosystem, it will not completely match the pre-drainage system. This is not possible, in light of the irreversible physical changes that have made ("sic") to the ecosystem. It will be an Everglades that is smaller and somewhat differently arranged than the historic ecosystem. But it will be a successfully restored Everglades, because it will have recovered those hydrological and biological patterns which defined the original Everglades, and which made it unique among the world’s wetland systems. It will become a place that kindles the wildness and richness of the former Everglades.US Army COE and SFWMD, p. xii.]
The report was the result of many cooperating agencies that often had conflicting goals. An initial draft was submitted to Everglades National Park management who asserted not enough water would be released to the park quickly enough—that the priority went to delivering water to urban areas. When they threatened to refuse to support it, the plan was rewritten to provide more water to the park. However, the
MiccosukeeIndians have a reservation in between the park and water control devices, and they threatened to sue to ensure their tribal lands and a $50 million casino would not be flooded. [Kloor, Keith (May 19, 2000). "Everglades Restoration Plan Hits Rough Waters", "Science", 288 (5469), pp. 1166–1167.] Other special interests were also concerned that businesses and residents would take second priority after nature. The Everglades, however, proved to be a bipartisan cause. The Comprehensive Everglades Restoration Plan(CERP) was authorized by the Water Development Act of 2000 and signed into law by President Bill Clinton on December 11, 2000. It approved the immediate use of $1.3 billion for implementation to be split by the federal government and other sources. [cite web
title = Water Resources Development Act (WRDA) of 2000
publisher = The Journey to Restore America's Everglades
date = November 4, 2002
url = http://www.evergladesplan.org/wrda2000/wrda.aspx
accessdate = 2008-05-23]
The State of Florida reports that it has spent more than $2 billion on the various projects since CERP was signed. More than convert|36000|acre|km2 of Stormwater Treatment Areas (STA) have been constructed to filter convert|2500|ST|MT of phosphorous from Everglades waters. An STA covering convert|17000|acre|km2 was constructed in 2004, making it the largest manmade wetland in the world. Fifty-five percent of the land necessary for restoration, totaling convert|210167|acre|km2|1, has been purchased by the State of Florida. A plan named "Acceler8", to hasten the construction and funding of the project, was put into place, spurring the start of six of eight construction projects, including that of three large reservoirs. [cite web
title = Restoring the River of Grass
publisher = Florida Department of Environmental Protection
year = 2006
url = http://www.dep.state.fl.us/evergladesforever/
accessdate = 2008-05-24]
quote box2 |width=30em | bgcolor=#ACE1AF |align=right |halign=left |quote="A changing economy, too, hurt the plan. It passed in a year with a record budget surplus, but the climate changed sharply after the terrorist attacks of 2001. Some state officials say the plan, which involves dozens of complex engineering projects, also got bogged down in federal bureaucracy, a victim of “analysis paralysis.”"
source="The New York Times", November 2007
Despite the bipartisan goodwill and declarations of the importance of the Everglades, the region still remains in danger. Political maneuvering continues to impede CERP: sugar lobbyists promoted a bill in the Florida legislature in 2003 that increased the acceptable amount of phosphorus in Everglades waterways from 10 ppb to 15 ppb and extended the deadline for the mandated decrease by 20 years. [(April 21, 2003). " [http://query.nytimes.com/gst/fullpage.html?res=9F04E3D8133AF932A15757C0A9659C8B63&scp=1&st=cse Everglades in Peril] ", "The New York Times", Section A, p. 22.] A compromise of 2016 was eventually reached. Environmental organizations express concern that attempts to speed up some of the construction through Acceler8 are politically motivated; the six projects Acceler8 focuses on do not provide more water to natural areas in desperate need of it, but rather to projects in populated areas bordering the Everglades, suggesting that water is being diverted to make room for more people in an already overtaxed environment. [Grunwald, Michael (October 14, 2004). " [http://pqasb.pqarchiver.com/washingtonpost/access/711984541.html?dids=711984541:711984541&FMT=ABS&FMTS=ABS:FT Fla. Steps In to Speed Up State-Federal Everglades Cleanup] ", "The Washington Post", p. A03.] Though Congress promised half the funds for restoration, after the
War in Iraqbegan and two of CERP's major supporters in Congress retired, the federal role in CERP was left unfulfilled. According to a story in " The New York Times", state officials say the restoration is lost in a maze of "federal bureaucracy, a victim of 'analysis paralysis' ".Goodnough, Abby (November 2, 2007). " [http://www.nytimes.com/2007/11/02/us/02everglades.html?scp=1&st=nyt Vast Effort to Save Everglades Falters as U.S. Funds Dwindle] ", "The New York Times", Section A, p. 1.] In 2007, the release of $2 billion for Everglades restoration was approved by Congress, overriding President George W. Bush's veto of the entire Water Development Project the money was a part of. Bush's rare veto went against the wishes of Florida Republicans, including his brother, Governor Jeb Bush. A lack of subsequent action by the Congress prompted Governor Charlie Cristto travel to Washington D.C.in February 2008 and inquire about the promised funds. [Clark, Lesley (February 13, 2008). " [http://www.miamiherald.com/516/story/416463.html Crist presses lawmakers for Glades funds] ", "The Miami Herald", State and Regional News.] As of June 2008, the federal government has spent only $400 million of the $7.8 billion legislated. [June 9, 2008. [http://www.sun-sentinel.com/news/opinion/sfl-editafpicayunesbjun09,0,2043626.story "Picayune Strand a model for what Everglades restoration will mean"] "Sun-Sentinel" (Ft. Lauderdale, Florida).] Carl Hiassencharacterized George W. Bush's attitude toward the environment as "long-standing indifference" in June 2008, exemplified when Bush stated he would not intervene to change the Environmental Protection Agency's (EPA) policy allowing the release of water polluted with fertilizers and phosphorus into the Everglades. [Hiassen, Carl (June 15, 2008). [http://www.miamiherald.com/418/story/569567.html "EPA ducks duty to keep water clean"] , "The Miami Herald", State and Regional News.]
Reassessment of CERP
The federal government's lack of action alarmed Nathaniel Reed, a longtime advocate of Everglades restoration: "Everglades restoration depends on electing a president who can reignite the national consciousness that this great program should not fail." "The Miami Herald" noted that 2008 presidential candidate Senator
John McCain(R) participated in the vote against releasing the $2 billion. When asked about it while touring the Everglades on a campaign stop, he defended the decision by stating the $2 billion was part of a larger package of spending he could not support, saying "I am committed to the preservation of the Everglades. I will do whatever is necessary to do so."Stratton, Jim (June 8, 2008). "McCain touts fiscal responsibility on campaign stop in Florida", "The Miami Herald", State and Regional News.] A McCain spokesman clarified the candidate's position: "After seeing the destruction and tragedy caused by Hurricane Katrina, Sen. McCain wanted to reform and clarify how the Army Corps of Engineers projects are set up and to cut down on the backlog. His position on the Everglades overall has been clear: a desire to do anything within reason to preserve it." Democratic presidential candidate Senator Barack Obamamissed the Congressional vote in 2007, but stated that "he would have 'enthusiastically voted' for the federal spending".Reinhard, Beth (June 5, 2008). "McCain, who opposed Everglades funding, to visit park", "The Miami Herald", State and Regional News.]
Florida still receives a thousand new residents daily and lands slated for restoration and wetland recovery are often bought and sold before the state has a chance to bid on them. The competitive pricing of real estate also drives it beyond the purchasing ability of the state. [Barnett, p. 185.] Because the State of Florida is assisting with purchasing lands and funding construction, some of the programs under CERP are vulnerable to state budget cuts. In 2008, Florida announced between $4 and $5 billion of cuts to many state programs. Everglades restoration was under consideration as one of the state-funded projects to be cut, [Fineout, Gary (April 4, 2008). "Deep budget cuts in store for S. Florida", "The Miami Herald", State and Regional News.] but Governor Crist signed the finalized budget on June 11, 2008, allotting $50 million towards restoration. [Klas, Mary Ellen (June 12, 2008). " [http://www.miamiherald.com/548/story/567131.html Crist OK's $66B budget with little fanfare] " "The Miami Herald", State and Regional News. Retrieved on June 12, 2008.] Two weeks later, Governor Crist announced that the State of Florida will buy U.S. Sugar for $1.7 billion. The idea came when sugar lobbyists were trying to persuade Crist to relax restriction of U.S. Sugar's practice of pumping phosphorus-laden water into the Everglades. According to one of the lobbyists who characterized it as a "duh moment", Crist said, "If sugar is polluting the Everglades, and we're paying to clean the Everglades, why don't we just get rid of sugar?" The largest producer of cane sugar in the U.S. will continue operations for six years, and when ownership transfers to Florida, convert|187000|acre|km2 of the Everglades will remain undeveloped to allow it to be restored to its pre-drainage state. [Cave, Damien and John Holusha (June 25, 2008). "Florida to Buy Sugar Maker in Bid to Restore Everglades", "The New York Times", p. 1.]
In September 2008 the
National Research Council(NRC), a nonprofit agency providing science and policy advice to the federal government, [ [http://sites.nationalacademies.org/nrc/index.htm Welcome to the National Research Council] , National Research Council website (2008). Retrieved on October 6, 2008.] submitted a report on the progress of CERP. The report noted "scant progress" in restoration due to problems in budgeting, planning, and bureaucracy. [http://dels.nas.edu/dels/rpt_briefs/everglades_brief_final.pdf "Progress Toward Restoring the Everglades: Second Biennial Review (Brief)"] , National Research Council (September 2008).] The NRC report called the Everglades one of the "world's treasured ecosystems" that is being further endangered by lack of progress: "Ongoing delay in Everglades restoration has not only postponed improvements—it has allowed ecological decline to continue". It cited the shrinking tree islands, and the negative population growth of the endangered " Rostrhamus sociabilis" or Everglades snail kite, and " Ammodramus maritimus mirabilis", the Cape Sable seaside sparrow. The lack of water reaching Everglades National Park was characterized as "one of the most discouraging stories" in implementation of the plan. The NRC recommended improving planning on the state and federal levels, evaluating each CERP project annually, and further acquisition of land for restoration.
History of Miami, Florida
Indigenous people of the Everglades region
Geography and ecology of the Everglades
Draining and development of the Everglades
Everglades National Park
Notes and references
* Barnett, Cynthia (2007). "Mirage: Florida and the Vanishing Water of the Eastern U.S.", University of Michigan Press. ISBN 0472115634
* Douglas, Marjory; Rothchild, John (1987). "Marjory Stoneman Douglas: Voice of the River". Pineapple Press. ISBN 0910923941
* Grunwald, Michael (2006). "The Swamp: The Everglades, Florida, and the Politics of Paradise", Simon & Schuster. ISBN 0743251075
* Lodge, Thomas E. (1994). "The Everglades Handbook: Understanding the Ecosystem". CRC Press. ISBN 1566706149
U.S. Army Corps of Engineersand South Florida Water Management District(April 1999). "Summary", [http://www.evergladesplan.org/docs/comp_plan_apr99/summary.pdf "Central and Southern Florida Project Comprehensive Review Study"] .
Wikimedia Foundation. 2010.
Geography and ecology of the Everglades — The geography and ecology of the Everglades involve the complex elements affecting the natural environment throughout the southern region of the U.S. state of Florida. Before drainage, the Everglades were an interwoven mesh of marshes and… … Wikipedia
Draining and development of the Everglades — Satellite image of the northern Everglades with developed areas in 2001, including the Everglades Agricultural Area (in red), Water Conservation Areas 1, 2, and 3, a … Wikipedia
Everglades National Park — IUCN Category Ib (Wilderness Area) … Wikipedia
Everglades — is also the name of a city in Collier County, Florida.The Everglades are a subtropical wetland located in the southern portion of the U.S. state of Florida, comprising the southern half of a large watershed. The system begins near Orlando with… … Wikipedia
Everglades — Saltar a navegación, búsqueda Mapa de los Everglades Imagen por satélite de la NASA. Everglades es el nombre de una región del estado estadounidense de Florida y también es el nombre de una ciudad del Condado de Collier en el mismo estado … Wikipedia Español
Everglades — Nationalpark Tropisches Marschland im Park … Deutsch Wikipedia
Everglades National Park — Everglades Nationalpark Tropisches Marschland im Park … Deutsch Wikipedia
Everglades-Nationalpark — Tropisches Marschland im Park … Deutsch Wikipedia
Everglades National Park — Parc national des Everglades Parc national des Everglades Catégorie II de la CMAP (Parc national) … Wikipédia en Français
Everglades — /ev euhr glaydz /, n. (used with a pl. v.) a swampy and partly forested region in S Florida, mostly S of Lake Okeechobee. Over 5000 sq. mi. (12,950 sq. km). * * * Subtropical saw grass marsh region, southern Florida, U.S. Covering about 4,000 sq… … Universalium