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Everglades National Park

North America, United States of America · Natural site · UNESCO World Heritage property #76

High ConcernConfidence: Supportedas of October 15, 2026

Significance

UNESCO inscribed Everglades National Park in 1979 under natural criteria (viii), (ix) and (x). UNESCO's description calls it the largest designated sub-tropical wilderness reserve on the North American continent and 'a river of grass flowing imperceptibly from the hinterland into the sea'; it supports many birds, reptiles and threatened species such as the manatee. The inscribed property covers 567,017 ha within a park of 610,670 ha.

Current Status Rationale

Historical damage is documented in the site's record, but the current classification is based on present conditions and the most recent credible evidence. The property is currently on the List of World Heritage in Danger for substantive ecological reasons and the Committee retained it there in 2026. Current evidence shows mixed conditions rather than a single trajectory: the Committee (2025) welcomed increased water flows, reduced nutrient pollution, growing crocodile, alligator and wading bird populations, reduced hypersalinity and no wildfires for over a decade, but also stated that invasive alien species remain a major threat, expressed concern about phosphorus and mercury, noted growing climate impacts, and (2023) stated that almost two thirds of the DSOCR sub-indicators remain below restoration targets. IUCN's 2025 assessment is more negative (overall Critical, values deteriorating, with the statement that some losses cannot be restored). Against escalation to Critical Concern, restoration projects are described as operational by the Committee (2023), State Party funding is documented (almost USD 1.5 billion committed per the 2023 decision; more than USD 2 billion in federal funding for the EAA Reservoir reported in April 2026), and the sources read report no loss of monitoring access (State Party reporting and Committee review continue). Confidence is Supported rather than Confirmed: the Committee decisions and the IUCN assessment agree on the seriousness of the situation, but the 2026 state of conservation report and the full IUCN assessment document were not read, the 2025 and 2026 decision pages were read in summarised form for some paragraphs, and the High/Critical boundary is a judgment call. Confidence does not alter the status.

Serious, currently active threats are documented, or major historical damage remains substantially unrepaired. Credible sources support this status, with some limits on corroboration.

Threat Categories

Environmental / Climate

Water management is the longest-standing documented threat: UNESCO's property page states that water management manipulations 'have been recognized as the largest environmental threat to the park', that flow volumes into the northern boundary 'are believed to have decreased by approximately 60 percent' and that wading bird populations 'are estimated at just 10% of pre-drainage levels' (the page does not date these figures). The Committee's 2025 decision (47 COM 7A.3) notes growing climate impacts including sea level rise, marsh collapse, vegetation shifts and saltwater intrusion, calls invasive alien species a major threat to Outstanding Universal Value, and expresses concern about localized increases in total phosphorus and continued mercury presence; it also reports that the roseate spoonbill population is declining and has abandoned historic nesting sites. IUCN's 2025 Outlook assessment states that invasive species are an increasing threat to site values and that climate change and sea level rise are increasingly impacting the property, and rates overall outlook Critical with values deteriorating. Peer-reviewed work supports the coastal-change concern: Sklar et al. (2021) estimate that, without soil accretion, 0.76 m of sea-level rise by 2070 would convert about 1,160 sq km of wetland in the study area (a 2-5 km-wide coastal band covering Everglades National Park and the East and West coastal regions of South Florida) to open estuarine water (the study area is a 2-5 km-wide coastal band, and the estimate is for the no-accretion case; the authors also model lower losses with soil accretion); Wilson et al. (2018) report field experiments within the park in which salinity pulses shifted a brackish marsh from a carbon sink to a carbon source and likely contribute to observed peat collapse. The Committee also records improvements: increased water flows, reduced nutrient pollution, reduced hypersalinity.

First identified: Not established — Chronic, long-term pressures documented across successive Committee decisions; the sources read give no single start date.

Sources: UNESCO World Heritage Centre, UNESCO World Heritage Centre, UNESCO World Heritage Centre, IUCN World Heritage Outlook, Frontiers in Ecology and Evolution, Ecological Applications (via FIU Digital Commons)

Natural Disaster

The U.S. Department of the Interior's 2010 press release states that the park was first placed on the Danger List in 1993, after Hurricane Andrew, because of concerns about deterioration of its ecological integrity. The Committee's 2025 decision reports no wildfires affecting the property for over a decade and does not mention storms; its sea-level and related climate impacts are described under environmental_climate. The sources read do not document unrepaired damage to the property from a disaster in 2025-2026. This category reflects continuing exposure as described in the 1993 listing history, not a currently documented unrepaired disaster; evidence is thin.

First identified: Not established — The year of Hurricane Andrew is not stated in the sources read, so no date is given; the 1993 danger listing is recorded in events[].

Sources: UNESCO World Heritage Centre, U.S. Department of the Interior

Conservation / Structural

The Committee has retained the property on the Danger List at every review read here (2023, 2024, 2025, 2026). In 2023 it stated that almost two thirds of the sub-indicators for the Desired state of conservation for removal (DSOCR) remain below restoration targets; the 2025 decision, as summarised from the decision page, again describes nearly two-thirds of the indicators as falling short. The Committee strongly encouraged reassessing and updating the corrective measures (adopted 2006, updated 2011) in 2025 and in 2026 reiterated its request for a joint World Heritage Centre / IUCN Reactive Monitoring mission and recalled its request for an updated report by 1 December 2026, with a full report for the 49th session in 2027. Development pressure: in 2023 and 2025 the Committee expressed 'utmost concern' about the proposed SR 836 / Dolphin Expressway extension and urged alternatives and an impact assessment; the 2024 decision records the project as 'temporarily halted' by a legal challenge with a decision pending (the current status of the project was not established from the sources read). Restoration investment is also documented: 2023 funding commitments of almost USD 1.5 billion (Committee) and, per April 2026 news reports, more than USD 2 billion in federal funding for the EAA Reservoir targeted for completion in 2029. IUCN rates protection and management 'Some Concern'.

First identified: Not established — Date is that of the first danger listing (1993) as recorded on UNESCO's property page; management and restoration concerns have continued through successive decisions.

Sources: UNESCO World Heritage Centre, UNESCO World Heritage Centre, UNESCO World Heritage Centre, UNESCO World Heritage Centre, UNESCO World Heritage Centre, IUCN World Heritage Outlook, National Parks Traveler, WGCU News

Historical Timeline

  1. 1979
    Everglades National Park inscribed on the World Heritage List

    UNESCO's property page records inscription in 1979 under natural criteria (viii), (ix) and (x).

    Sources: UNESCO World Heritage Centre

  2. 1993
    Property first placed on the List of World Heritage in Danger

    UNESCO's property page records danger listing for 1993-2007. The U.S. Department of the Interior's 2010 press release says the park was first placed on the list in 1993, after Hurricane Andrew, because of concerns about deterioration of its ecological integrity. The Committee's own 1993 reasoning (17 COM XI) was not available on the decision page read.

    Sources: UNESCO World Heritage Centre, U.S. Department of the Interior

  3. 2007
    Property removed from the Danger List

    Committee decision 31 COM 8C.3 removed Everglades National Park from the List of World Heritage in Danger. The Interior Department's 2010 press release says the removal came at the previous U.S. administration's request. The decision page read gives no reasons.

    Sources: UNESCO World Heritage Centre, U.S. Department of the Interior

  4. 2010-07
    Committee returns the property to the Danger List

    At its 34th session the Committee decided (34 COM 7B.29) to inscribe the property on the List of World Heritage in Danger, noting with concern that the property's aquatic ecosystem continued to deteriorate and welcoming the State Party's request for re-inscription. The U.S. Interior Department's press release is dated 30 July 2010.

    Sources: UNESCO World Heritage Centre, U.S. Department of the Interior

  5. 2017-11
    IUCN rates the property's conservation outlook 'critical'

    WLRN reported that IUCN's November 2017 outlook report rated Everglades National Park's conservation outlook 'critical', citing changes to water flow, quality, distribution and timing, invasive species and overlapping management plans and jurisdictions, as described by IUCN adviser Peter Shadie.

    Sources: WLRN

  6. 2023
    Committee decision 45 COM 7A.17 retains the property on the Danger List

    The Committee noted new funding commitments of almost USD 1.5 billion and the purchase of approximately 8,000 ha of land and drilling rights in the Everglades Protection Area, but stated that almost two thirds of the sub-indicators for the Desired state of conservation for removal (DSOCR) remain below the restoration targets. It expressed 'utmost concern' about the planned SR 836 / Dolphin Expressway extension.

    Sources: UNESCO World Heritage Centre

  7. 2024
    Committee decision 46 COM 7A.41 retains the property on the Danger List

    The Committee acknowledged an updated report on the proposed SR 836 / Dolphin Expressway extension, which it records as 'temporarily halted' because of a legal challenge with a decision still pending, and recalled its request for an updated state of conservation report by 1 December 2024, for examination at the 47th session.

    Sources: UNESCO World Heritage Centre

  8. 2025-07
    Committee decision 47 COM 7A.3 retains the property on the Danger List

    The Committee welcomed improvements since 2019 (including increased water flows, reduced nutrient pollution, growing crocodile, alligator and wading bird populations, reduced hypersalinity and no wildfires affecting the property for over a decade), while stating that invasive alien species remain a major threat and expressing concern about localized increases in total phosphorus and continued mercury presence. It expressed 'utmost concern' about the proposed SR 836 / Dolphin Expressway extension, strongly encouraged updating the corrective measures (adopted 2006, updated 2011), requested a joint World Heritage Centre / IUCN Reactive Monitoring mission and an updated report by 1 December 2026. WLRN reported the decision on 9 July 2025; the month is taken from that report.

    Sources: UNESCO World Heritage Centre, WLRN (republished by WUWF)

  9. 2025-10-11
    IUCN World Heritage Outlook assessment finalised: overall outlook Critical

    IUCN's 2025 assessment page lists the overall Conservation Outlook as Critical (finalised 11 October 2025), with values rated Critical with a deteriorating trend, threats rated Very High Threat and protection and management rated Some Concern.

    Sources: IUCN World Heritage Outlook

  10. 2026-04
    More than USD 2 billion in federal funding reported for the EAA Reservoir

    National Parks Traveler (14 April 2026) and WGCU (16 April 2026) reported more than USD 2 billion in federal funding for the Everglades Agricultural Area Reservoir, with completion targeted for 2029 versus the previously planned 2034 (National Parks Traveler says the Army Corps of Engineers' Jacksonville District modified the contract to finish construction by 2029). WGCU reports that Gov. Ron DeSantis championed the federal-state agreement last year and says it will speed completion, and quotes Everglades Foundation CEO Erik Eikenberg: 'This investment provides the financial certainty needed to keep construction on an accelerated track.'; WGCU describes the reservoir as south of Lake Okeechobee, and the articles do not give a completion percentage.

    Sources: National Parks Traveler, WGCU News

  11. 2026-07
    Committee decision 48 COM 7A.42 retains the property on the Danger List

    At its 48th session in Busan (19-29 July 2026, per UNESCO's session page) the Committee decided to retain Everglades National Park on the List of World Heritage in Danger (48 COM 7A.42 and, among 52 retained properties, 48 COM 8C.2), reiterated its request for a joint World Heritage Centre / IUCN Reactive Monitoring mission, recalled its request for an updated report by 1 December 2026, and noted that a full state of conservation report will be provided for examination at its 49th session in 2027. The decision text as read contains only these operative paragraphs.

    Sources: UNESCO World Heritage Centre, UNESCO World Heritage Centre, UNESCO World Heritage Centre

Digital Preservation Index

Overall coverage: Moderate — Documented in several categories, with some notable gaps.

Two of five categories have publicly viewable evidence that was opened (photographic and academic/scholarly), which gives the moderate tier by the rubric. Photographic evidence is a small public gallery (12 images) and a Google Arts & Culture page, not a systematic survey. Archival records: the National Park Service's South Florida Collections page lists virtual exhibits, and an NPS collections page describes archives of over 2.1 million items, but that page (last updated 2015) mentions no online catalog and no exhibit was opened, so this category is marked false rather than assumed. 3D documentation: a University of South Florida Sketchfab collection of Everglades models appeared in search results but its page returned no readable content, so it is not counted; LiDAR datasets found were ecological research data. Virtual tour: the NPS virtual programs read are live sessions for registered groups, and a Google Arts & Culture exhibit announced by the Everglades Foundation was not itself opened, so none is counted. UNESCO's own reports and decisions are not counted as archival records. Coverage reflects what is publicly findable. Verifier note: the academic_scholarly category rests on ecological research papers about the park rather than heritage-documentation scholarship; this is a borderline reading of the category (the coverage note excludes ecological LiDAR datasets on similar grounds), so the moderate tier is sensitive to it - if the category is not accepted the site would be limited.

Law and commitments

Sources