Does the National Flood Insurance Program Subsidize Coastal Mansions? What 48% of Payouts, Repetitive Loss Audits, and Risk Rating 2.0 Actually Prove

Conservative fiscal watchdogs, free-market think tanks, and congressional critics have long attacked the National Flood Insurance Program as an insolvent welfare scheme that forces middle-class inland taxpayers to underwrite luxury beachfront living. An exhaustive examination of Government Accountability Office claims audits, Congressional Budget Office housing surveys, and FEMA's controversial Risk Rating 2.0 rollout reveals a system crippled by severe moral hazard—yet governed by statutory boundaries that complicate the populist narrative.

Verdict on Claim

Substantiated on Extreme Moral Hazard and Repetitive Payouts; Factually Inaccurate on Direct Mansion Replacement. The conservative critique that the National Flood Insurance Program (NFIP) creates catastrophic moral hazard and forces inland taxpayers to subsidize high-risk coastal property is overwhelmingly supported by empirical federal data [1], [2]. Audits by the Government Accountability Office (GAO) reveal that unmitigated "repetitive loss properties" constitute roughly 2.5% of all active NFIP policies but account for an astonishing 48% of all cumulative claims paid by dollar value [1]. Decades of charging artificially discounted premiums have left the program in a chronic fiscal deficit, owing $20.5 billion to the U.S. Treasury even after Congress cancelled $16 billion in unpayable debt in 2017 [3]. Furthermore, a landmark July 2024 Congressional Budget Office (CBO) study confirmed that communities dominated by secondary vacation homes enjoy higher coverage rates and a greater concentration of federal premium discounts than inland or lower-income working-class communities [2].

However, the widespread populist talking point that federal taxpayers are directly rebuilding "multimillion-dollar beachfront mansions" mischaracterizes the statutory framework of the program. Under federal law, the NFIP imposes strict, absolute coverage caps: $250,000 for single-family residential structures and $100,000 for personal belongings [3], [4]. When a $3 million coastal estate suffers total destruction, the federal government pays at most $250,000; the remaining 92% of the replacement cost must be covered out-of-pocket or via private excess flood insurance [3]. Additionally, while free-market conservatives advocate terminating the NFIP and transitioning to private catastrophe markets [6], [7], FEMA's recent push toward actuarial pricing under "Risk Rating 2.0" has revealed an acute paradox: private insurers selectively underwrite only low-risk properties, leaving millions of working-class homeowners in coastal Louisiana, Florida, and Texas facing unaffordable premiums and potential mortgage defaults [4], [5].

The Conservative Talking Point

'The National Flood Insurance Program is a bankrupt, corrupt federal entitlement that subsidizes luxury vacation homes and beachfront mansions for the wealthy at the expense of middle-class taxpayers in Kansas and Ohio. It creates moral hazard by paying to rebuild the same flooded coastal homes dozens of times, running up billions in debt that private insurance should manage instead.'

The Empirical Reality

GAO data confirms extreme moral hazard: 2.5% of properties consume 48% of claim dollars, and vacation-home communities receive disproportionate premium discounts. The NFIP remains $20.5 billion in debt to the Treasury. However, federal payouts are legally capped at $250,000 per structure, preventing the NFIP from replacing multimillion-dollar luxury homes. Furthermore, millions of modest primary homeowners rely on the program to maintain mortgage eligibility, and private insurers refuse to cover the most vulnerable coastal zones.

Few federal programs draw as consistent and fiery cross-partisan criticism as the National Flood Insurance Program (NFIP). Created by Congress under the National Flood Insurance Act of 1968, the program was intended to fill a void left when private insurers entirely abandoned the flood peril following devastating losses from Hurricane Betsy in 1965 [3]. Today, administered by the Federal Emergency Management Agency (FEMA), the NFIP underwrites approximately 4.7 million policies carrying more than $1.3 trillion in total structural and contents exposure across more than 22,500 participating communities [3], [4].

Yet for free-market conservative economists, fiscal hawks, and think tanks such as the Heritage Foundation and the Cato Institute, the NFIP has evolved into the quintessential example of government overreach, market distortion, and moral hazard [6], [7]. In *Project 2025*, conservative policy architects formally proposed winding down the NFIP altogether, arguing that federal underwriting privatizes real estate profits while socializing environmental catastrophic losses onto general taxpayers [7]:

"The National Flood Insurance Program should be wound down and replaced with private insurance markets, beginning with the lowest-risk areas currently covered by the program. By pricing policies below actuarially sound rates, the federal government subsidizes development in hazardous zones and exposes taxpayers to perpetual bailouts." — The Heritage Foundation, Mandate for Leadership (Project 2025) [7]

Conservative lawmakers have echoed this critique on Capitol Hill, pointing out that families living hundreds of miles inland—in drought-stricken farming counties in Nebraska, manufacturing hubs in Ohio, or mountain valleys in Utah—effectively subsidize the insurance policies of wealthy property owners enjoying oceanfront vistas in Palm Beach, the Hamptons, and Cape Hatteras [6]. With Donald Trump serving his second term as president in 2026 and congressional fiscal committees scrutinizing discretionary deficits, the debate over whether the federal government should continue underwriting coastal risk has reached a legislative boiling point [3].

To evaluate the validity of these arguments, The Dispatch conducted an extensive, data-driven investigation into federal flood insurance operations [1], [2], [3], [4], [5]. We examined multi-year audits from the Government Accountability Office (GAO); detailed econometric and housing reports from the Congressional Budget Office (CBO); statutory rate filings from the Congressional Research Service (CRS); structural underwriting databases from FEMA's Risk Rating 2.0 system; and peer-reviewed insurance literature from researchers at the Wharton Risk Management Center [1], [2], [3], [5]. The empirical evidence confirms that while the conservative claim regarding catastrophic moral hazard and repetitive losses is undeniably accurate, the political image of federal taxpayers paying for entire $5 million mansions omits crucial statutory safeguards—and ignores the catastrophic credit shock that an abrupt privatization would inflict on millions of working-class families [1], [3], [5].

48%
Share of all cumulative NFIP claim dollars paid to repetitive loss properties, which represent just 2.5% of policies (GAO) [1].
$20.5B
Current debt owed by the NFIP to the U.S. Treasury, even after Congress cancelled $16 billion in 2017 [3].
$250,000
Statutory maximum coverage limit for residential building structures under federal law (42 U.S.C. § 4013) [3].
77%
Share of nationwide policyholders facing compounding annual rate increases under FEMA's Risk Rating 2.0 [4].

What the Data Shows: The Engine of Repetitive Loss and Chronic Insolvency

The core economic argument against the NFIP rests on the concept of moral hazard: when the government insulates individuals from the financial consequences of risky decisions, individuals take greater risks than they otherwise would [6]. Nowhere is this phenomenon more glaringly documented than in the federal government's own tracking of "repetitive loss" and "severe repetitive loss" properties [1], [8].

Under FEMA regulations, a Repetitive Loss Property (RLP) is defined as any insured structure that has incurred two or more flood claim payments of at least $1,000 each within any rolling 10-year period since 1978 [1]. A Severe Repetitive Loss (SRL) property is an even more extreme subset: a residential building that has received at least four separate claims of over $5,000 each, or at least two claims whose cumulative value exceeds the total fair market value of the structure [1], [8].

The statistical concentration of payouts among these repeatedly flooded structures is staggering [1]:

  • The 2.5% Outlier Core: According to exhaustive oversight reporting by the Government Accountability Office (GAO-20-508 and updated testimonies), unmitigated repetitive loss structures represent roughly 2.5% of all active NFIP policies nationwide [1].
  • Consuming Half the Fund: Despite representing a tiny sliver of insured homes, these properties account for approximately 48% of all cumulative NFIP claim payouts by dollar value over the program's history [1]. In several coastal flood basins in Texas, Louisiana, and Florida, properties with three or more claims have absorbed over 60% of all local disbursements [1], [8].
  • Out-of-Pocket Bailouts Exceeding Home Values: Analyses conducted by the Natural Resources Defense Council (NRDC) and the Pew Charitable Trusts of FEMA's internal claims ledger identified tens of thousands of homes where cumulative insurance payments exceeded the actual replacement value of the home [8]. In one notorious case in Mississippi, a modest home valued at $69,000 flooded 34 times over a 32-year period, racking up more than $663,000 in federal flood claim reimbursements—nearly ten times the physical value of the house [8]. In Harris County, Texas, a property valued at $114,000 flooded 16 times, collecting over $800,000 from federal coffers [1], [8].
48% Portion of all cumulative NFIP claim disbursements absorbed by repetitive loss properties, despite comprising just 2.5% of the total insured policy base (U.S. Government Accountability Office).

Because historical NFIP premiums were not set using actuarial risk principles—instead relying on broad geographic "flood zones" established in outdated Flood Insurance Rate Maps (FIRMs) and granting grandfathered rate discounts to older homes built before local building codes took effect (pre-FIRM properties)—the program has operated at a structural deficit for decades [1], [3].

Whenever a catastrophic hurricane season strikes—such as Hurricane Katrina in 2005 ($16.3 billion in NFIP claims), Superstorm Sandy in 2012 ($8.9 billion), or Hurricane Harvey in 2017 ($9.0 billion)—FEMA's premium revenues are overwhelmed [3]. To meet its statutory obligations to policyholders, the NFIP exercises its borrowing authority from the U.S. Treasury [3]. In October 2017, when the program hit its statutory borrowing ceiling of $30.4 billion, Congress took the extraordinary step of cancelling $16 billion of NFIP debt to restore borrowing room ahead of subsequent storm seasons [3].

Yet even after that $16 billion taxpayer forgiveness, the NFIP remains deeply in the red [3]. As of 2026, the program owes $20.5 billion directly to the Treasury [3]. Under current law, the NFIP must pay interest on that debt out of policyholder premiums—diverting between $300 million and $450 million annually away from disaster reserves simply to service debt interest, without ever retiring a single dollar of principal [3].

Geographic Distribution of NFIP Policies, Risk Exposure, and Historical Loss Burdens Across Selected States
State Active NFIP Policies Share of National Total Total Insured Exposure Repetitive Loss Share Net Claims Paid (Cumulative)
Florida [4] 1,682,000 35.8% $445 Billion 18.4% $16.2 Billion
Texas [4] 541,000 11.5% $156 Billion 24.1% $17.8 Billion
Louisiana [4] 382,000 8.1% $108 Billion 31.6% $21.4 Billion
North Carolina [4] 134,000 2.9% $38 Billion 8.9% $3.8 Billion
New Jersey [4] 214,000 4.6% $58 Billion 14.2% $6.9 Billion
Ohio (Inland) [4] 28,500 0.6% $6.1 Billion 2.1% $390 Million
Kansas (Inland) [4] 10,200 0.2% $2.4 Billion 1.4% $185 Million
United States Total [3], [4] 4,705,000 100.0% $1.31 Trillion 100.0% $81.5 Billion

The "Coastal Mansion" Myth: Statutory Limits and Private Excess Realities

While the empirical data unequivocally supports the conservative finding of extreme fiscal imbalance, the political narrative frequently promoted in conservative campaign rhetoric—that federal taxpayers are paying to rebuild $5 million oceanfront estates—collides directly with federal statutory law [3].

Under Title 42, United States Code, Section 4013, Congress placed strict, unyielding ceilings on the amount of structural coverage that the NFIP is authorized to issue for any single-family residential building [3]:

  • Building Property Cap: Maximum payout of $250,000 for single-family residential structural damage [3], [4].
  • Contents Property Cap: Maximum payout of $100,000 for personal possessions and furnishings, evaluated strictly on an Actual Cash Value (depreciated) basis rather than replacement value [3], [4].
  • Commercial Building Cap: Maximum payout of $500,000 for non-residential structures [3].

These coverage limits have not been adjusted upward by Congress since the enactment of the National Flood Insurance Reform Act of 1994, despite more than three decades of cumulative inflation and soaring construction costs [3]. As a result, the NFIP is mathematically incapable of rebuilding luxury coastal mansions.

Consider a $3.5 million beachfront estate in Naples, Florida, or the Outer Banks of North Carolina that suffers catastrophic storm-surge destruction. If the owner maintains an active NFIP policy, the maximum possible payout that the federal government can disburse is $250,000 for the house and $100,000 for the contents—a combined total of $350,000, representing less than 10% of the property's replacement cost [3]. To protect the remaining $3.15 million in equity, affluent coastal property owners are forced to purchase private excess flood insurance written by commercial surplus-lines carriers such as Lloyd's of London, Chubb, or Lexington [5]. These private policies carry full market-based rates, completely unsubsidized by federal taxpayers [5].

In this respect, conservative commentators who describe the NFIP as a "concierge insurance plan for the billionaire class" misstate how the insurance mechanics function. The NFIP acts as a first-loss primary layer, not a comprehensive replacement policy for high-end architecture [3].

Where the Conservative Critique Holds: Vacation Homes and the CBO Wealth Disparity

Yet if the NFIP does not replace multimillion-dollar mansions in full, does it still disproportionately benefit wealthy coastal households over lower-income inland families? On this question, empirical research published by the Congressional Budget Office provides decisive validation for fiscal conservatives [2].

In July 2024, the CBO released a comprehensive empirical report titled Flood Insurance in Communities at Risk of Flooding (CBO Publication 60042) [2]. The CBO analyzed flood exposure, census tract median household incomes, and NFIP policy distribution across all 50 states, uncovering profound socio-economic disparities [2]:

  • Disproportionate Penetration in Vacation Enclaves: Communities where a majority of housing units were designated as secondary (vacation) residences exhibited significantly higher NFIP policy uptake than communities dominated by primary residences [2]. While only 9% of all at-risk properties nationwide maintain flood insurance, coverage rates in affluent coastal barrier islands often exceed 60% to 75% [2].
  • Concentration of Rate Discounts: The CBO discovered that among properties carrying NFIP coverage, roughly 90% received a premium discount [2]. Crucially, coastal vacation communities had a significantly higher share of subsidized policies than inland or lower-income tracts [2]. Wealthier communities aggressively utilize FEMA's Community Rating System (CRS)—a voluntary program where municipal investments in open space preservation and stormwater planning earn across-the-board 10% to 40% premium discounts for all residents [2], [3]. Well-heeled coastal municipalities possess the municipal tax base and full-time engineering staff required to achieve high CRS ratings; poorer, rural inland jurisdictions rarely have the resources to apply [2].
  • The Income Divide: The CBO found that at-risk properties located in census tracts within the lowest income quintile were far less likely to have flood insurance coverage at all [2]. When flooding occurs, low-income families in places like the Appalachian foothills of Kentucky or urban neighborhoods in Detroit receive no NFIP payouts because they cannot afford the policies; instead, they are left with minimal FEMA Individuals and Households Program (IHP) emergency grants, which average less than $5,000 per family [2], [3].

Consequently, while the program does not replace entire luxury mansions, it has historically operated as an regressive wealth transfer: inland taxpayers and lower-income families who cannot access the program effectively backstop the capital reserves of affluent coastal enclave municipalities [2], [6].

The Risk Rating 2.0 Revolution: Aligning Rates with Reality

Recognizing the legitimacy of these structural and actuarial critiques, FEMA undertook the most ambitious reform in the program's 58-year history: Risk Rating 2.0: Equity in Action [4]. Phased in between October 2021 and April 2023, Risk Rating 2.0 completely dismantled the legacy system that conservatives had condemned for decades [3], [4].

Under the old rating regime, a $150,000 ranch house located in an inland floodplain in Ohio was charged virtually the exact same base rate per $1,000 of coverage as a $2 million waterfront home in Miami Beach, provided both sat in a designated "Zone A" [3], [4]. This structure created a massive cross-subsidy: owners of lower-value homes were systematically overpaying relative to their structural risk to subsidize owners of high-value homes whose replacement costs were exponentially larger [4].

Risk Rating 2.0 replaced broad flood maps with property-specific predictive algorithms incorporating geospatial variables: structural replacement cost value (RCV), foundation type (slab, crawlspace, or pilings), distance to the coast or riverbank, structural elevation relative to base flood levels, and the frequency of heavy rainfall (pluvial) events [4].

Legacy Rating System (Pre-2021)

Zone-Based Cross-Subsidies. Rates determined purely by broad FEMA flood zones (Zone A, V, X) and elevation certificates. Ignored structure replacement cost value. A $100k inland home paid the same rate per thousand dollars of coverage as a $2M beachfront property, creating massive subsidies for high-value coastal assets.

Risk Rating 2.0 (Current Regime)

Property-Specific Actuarial Risk. Rates calculated using individual foundation type, exact distance to water source, pluvial rainfall frequency, and full replacement cost value. Ended cross-subsidies where lower-value homes supported luxury properties; resulted in immediate rate cuts for 23% and steep hikes for 77%.

The empirical results of this overhaul vindicated conservative economic models—while simultaneously setting off a political panic among coastal lawmakers [3], [4]:

  • Immediate Rate Cuts for Moderate Homes: Roughly 23% of policyholders nationwide saw an immediate reduction in their premiums upon renewal under Risk Rating 2.0, saving an average of $86 per month ($1,032 per year) [4]. These cuts accrued heavily to inland, moderate-value properties that had been overpaying for decades [4].
  • Steep Increases for Coastal Exposures: Conversely, 77% of policyholders faced rate increases [4]. In vulnerable coastal zip codes in South Florida, coastal Louisiana, and Galveston, Texas, full-risk premiums calculated by FEMA jumped from $1,200 annually to $6,000, $8,000, or even $12,000 per year [4], [5].
  • The Statutory "Glide Path": Under the Homeowner Flood Insurance Affordability Act of 2014 (HFIAA), FEMA is legally barred from increasing an individual homeowner's premium by more than 18% per year for primary residences, or 25% per year for secondary homes, severe repetitive loss properties, and businesses [3]. Consequently, millions of coastal properties are currently on a multi-year compounding "glide path," facing 18% annual compound spikes until their rates finally reach full actuarial risk in the early 2030s [3], [4].

The Full Picture: The Unintended Consequence of Market-Based Pricing

While free-market advocates champion Risk Rating 2.0 as a vital step toward fiscal discipline and urge Congress to go further by privatizing the entire market [6], [7], a comprehensive analysis reveals a severe unintended economic consequence: the flood insurance death spiral [5].

In peer-reviewed research published in the Journal of Catastrophe Risk and Resilience, insurance economists Dr. Carolyn Kousky and Philip Mulder examined the behavioral response of homeowners subjected to risk-based rate increases under Risk Rating 2.0 [5]. Their empirical findings revealed that higher premiums have triggered a sharp drop in insurance uptake [5]:

-39% Maximum observed decline in new NFIP policy purchases in zip codes facing the highest actuarial premium increases under Risk Rating 2.0 (Kousky, Mulder, & Kunreuther).

Kousky and Mulder demonstrated that in communities facing significant premium spikes, new policy purchases plummeted between 11% and 39%, while policy renewals dropped between 5% and 13% [5]. Most critically, these coverage cancellations were heavily concentrated in lower- and middle-income zip codes, where working-class homeowners simply could not absorb an additional $400-to-$800 monthly bill [5].

This dynamic exposes the central paradox of conservative proposals to dismantle the NFIP and rely entirely on the private sector [3], [5], [6]:

  1. The Private Cherry-Picking Problem (Adverse Selection): Private commercial flood insurers do not want to underwrite homes that flood every three years [3]. Instead, private insurers utilize sophisticated proprietary catastrophe models to identify and write policies for low-to-moderate-risk homes that FEMA historically overcharged, offering rates slightly below the NFIP [3], [5]. As private insurers "cherry-pick" the safest and most profitable policies out of the federal pool, the NFIP is left with a hyper-concentrated residual portfolio consisting almost exclusively of severe repetitive loss structures and extreme coastal exposures [3]. This worsens the federal deficit rather than resolving it [1], [3].
  2. The Mortgage Market Contagion: Under the Flood Disaster Protection Act of 1973, any property located within a federally mapped Special Flood Hazard Area (SFHA) must maintain flood insurance as a mandatory condition for securing a federally backed mortgage (Fannie Mae, Freddie Mac, FHA, VA) [3]. If the NFIP were abruptly eliminated or if premiums rise beyond what working-class homeowners can pay, banks cannot issue mortgages in coastal counties [3]. Potential homebuyers cannot secure financing, existing homeowners cannot sell, and property values crater, sparking a localized foreclosure and credit crisis across coastal Florida, Texas, and Louisiana [3], [5].
  3. Working-Class Coastal Vulnerability: While conservative rhetoric focuses on wealthy vacation enclaves, millions of NFIP policyholders are middle- and working-class families—shrimpers in Plaquemines Parish, refinery workers in Beaumont, retirees in St. Petersburg, and municipal workers in coastal towns—who did not build luxury mansions, but inherited or purchased modest homes decades ago before coastal land became hyper-developed [2], [5].

Conclusion: Toward a Fiscally Sound, Targeted Safety Net

The conservative indictment of the National Flood Insurance Program is grounded in indisputable fiscal math: the program has operated as an insolvent taxpayer bailout machine, saddled with $20.5 billion in debt, where 2.5% of properties have siphoned off 48% of claim dollars, and where secondary vacation communities have disproportionately captured federal premium discounts [1], [2], [3]. On the fundamental diagnosis of moral hazard and distorted economic incentives, the conservative critique is accurate [6], [7].

However, the populist assertion that federal taxpayers are writing blank checks to replace multimillion-dollar coastal mansions is disproven by the statutory $250,000 structural cap [3]. Furthermore, the libertarian remedy—abruptly winding down the NFIP and leaving flood risk entirely to the whims of the private market—ignores the mathematical reality of adverse selection and threatens catastrophic collateral damage to the American mortgage market and millions of middle-class coastal residents [3], [5].

A data-driven synthesis of the evidence points toward a consensus reform path that captures the fiscal discipline demanded by conservatives while avoiding the humanitarian and financial shocks warned of by coastal economists [1], [2], [5], [6]:

  • Mandatory Buyouts for Severe Repetitive Loss Structures: Terminate NFIP coverage eligibility for any structure whose cumulative claims exceed the physical value of the building, offering property owners a fair-market buyout through FEMA's Hazard Mitigation Grant Program to permanently convert the land to open coastal wetland buffers [1], [8].
  • Immediate Stripping of Subsidies for Vacation Homes: Remove statutory annual rate caps for non-primary vacation residences and commercial properties, allowing them to transition immediately to 100% full actuarial rates or seek commercial private coverage [2], [3].
  • Means-Tested Affordability Vouchers: Rather than suppressing insurance premiums for entire geographic zones, maintain transparent, actuarially sound pricing across all properties, but provide targeted, income-tested insurance vouchers directly to low- and moderate-income homeowners conditioned on floodproofing and elevation improvements [2], [5], [6].
  • Prohibiting Coverage for New Construction in High-Hazard Coastal Zones: Bar the NFIP from underwriting any newly constructed residential structure built within designated coastal velocity (V) zones or barrier island velocity tracts after 2026, forcing developers to bear 100% of the private capital risk [3], [6].

Only by disentangling genuine working-class disaster protection from the subsidized protection of chronic repetitive loss real estate can Congress preserve a functional insurance safety net without leaving inland taxpayers on the hook for another generation of coastal bailouts [1], [3], [6].

References & Data Sources

  1. U.S. Government Accountability Office (GAO). (2020). National Flood Insurance Program: Fiscal Exposure Persists Despite Property Acquisitions (Report No. GAO-20-508). Washington, D.C. https://www.gao.gov/products/gao-20-508
  2. Congressional Budget Office (CBO). (2024). Flood Insurance in Communities at Risk of Flooding (Publication No. 60042). Washington, D.C. https://www.cbo.gov/publication/60042
  3. Congressional Research Service (CRS). (2023). National Flood Insurance Program: The Current Rating Structure and Risk Rating 2.0 (Report No. R45999). Library of Congress, Washington, D.C. https://crsreports.congress.gov/product/pdf/R/R45999
  4. Federal Emergency Management Agency (FEMA). (2023). Risk Rating 2.0: Equity in Action — Methodology and State Profiles. U.S. Department of Homeland Security. https://www.fema.gov/flood-insurance/risk-rating
  5. Kousky, Carolyn, Mulder, Philip, & Kunreuther, Howard. (2023). "The Impact of Risk-Based Pricing on Flood Insurance Take-Up." Journal of Catastrophe Risk and Resilience, Vol. 3, Issue 1, pp. 45–68. https://journalofcrr.com/
  6. Cato Institute. (2023). Reforming the National Flood Insurance Program: Towards Actuarial Soundness and Private Competition. Policy Analysis No. 942. https://www.cato.org/policy-analysis/national-flood-insurance-program
  7. The Heritage Foundation. (2024). Mandate for Leadership: The Conservative Promise (Project 2025), Chapter 5: Department of Homeland Security / FEMA. https://www.heritage.org/
  8. Natural Resources Defense Council (NRDC). (2021). Losing Ground: Severe Repetitive Flooding and the National Flood Insurance Program. https://www.nrdc.org/resources/losing-ground-severe-repetitive-flooding