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GRA · Climate and Nature Financial Risk

Spatial financeWhere capital meets hazard, exposure and transition

Disclosure and data

Climate and nature disclosure gives investors, lenders and supervisors information on exposure and management. ISSB IFRS S2 sets a global baseline adopted in many jurisdictions; the Basel Committee has a voluntary bank framework; the TNFD addresses nature. Underneath sit data on emissions, exposures and locations that are often estimated. This page sets out how disclosure and data work, where they fall short, and who decides.

01Register

Disclosure and data on the record.

02The question

Disclosure and data: how the risk develops.

Source quality and comparability. The dossier below sets out how the risk develops, what is measured, where the data come from, how it is modelled and who decides.

Mechanism

Standards set the baseline

IFRS S2 requires governance, strategy, risk management, metrics and targets disclosures, with industry-specific metrics and financed emissions for financial institutions. Jurisdictions adopt with reliefs and timelines.

Mechanism

Counterparty data are estimated

Financial institutions depend on borrowers' and investees' data, which many do not report. Estimates fill gaps, with quality scores that must be disclosed.

Mechanism

Location data are missing

Physical and nature risk need asset locations, which are often absent from loan and investment records. Without them, exposure is guessed.

Mechanism

Assurance lags

Sustainability data receive less assurance than financial statements. Errors in estimates and methods can persist into decisions.

03Spatial finance

Assets on the grid, and the portfolio they make.

Where a portfolio's assets sit, and how much of its value is most exposed. Hypothetical assets, not an assessment.

Sixteen assets at real towns, and the share of portfolio value in the most exposed places.Hypothetical assets and design scores, not advice.
04Indicators

What is measured, and how well.

Each indicator carries its unit, its cadence, the kind of source behind it and the evidence label a value would carry. No values are shown: a programme supplies them under its own authority.

IndicatorUnitCadenceSource typeLabel
Jurisdictions adopting ISSB standardscount by approachon changeIFRS Foundation jurisdictional profilesPublished statistics
Financial institutions disclosing financed emissionscountannualPCAF and disclosure recordsDECLARED
PCAF data quality scorescore, one to fiveannualInstitution disclosuresDECLARED
Share of counterparties with reported emissionspercentannualInstitution dataREPORTED
Exposures with geolocated collateralshare of portfolioperiodicBank dataREPORTED
Sustainability disclosures with external assuranceshare of reportsannualCompany filingsDECLARED
05Scenario model

Transition and physical risk on a portfolio.

Three scenario families after the NGFS framework move a sector portfolio through carbon costs and warming damages; the transmission view follows the losses to lenders, investors, public finances and households. Scenario: named assumptions about the future, not a forecast. The map on this page shows Southeast Asia; the model itself is not tied to a place.

Controls

Carbon price at the horizon, orderly path
200 per tCO2
Delay before a disorderly transition
50% of horizon
Cost passed to customers
50%
Warming today above pre-industrial
1.30°C
Warming per decade, current policies
0.25°C
Damage coefficient
0.24% per °C²
Years ahead
25 years

Readouts

Worst scenario at the horizon
−33.6% of value
Numbers, methods and sources
YearOrderly transition (% value)Delayed, disorderly transition (% value)Current policies (% value)
0−0.38−0.38−0.38
3−2.87−0.53−0.67
6−5.36−0.68−0.97
9−7.84−0.84−1.27
12−10.33−0.99−1.57
15−12.82−7.12−1.87
18−15.31−15.05−2.17
21−17.80−23.00−2.48
24−20.29−30.94−2.79

Methods

  1. Climate scenario families NGFS (2023), Climate Scenarios for central banks and supervisors, Phase IV
  2. Climate stress test of the financial system Battiston and others (2017), Nature Climate Change 7
  3. Damage function Nordhaus (2017), Revisiting the social cost of carbon, PNAS 114
  4. Transmission channels BCBS (2021), Climate-related risk drivers and their transmission channels
  5. Uncertainty fan (parameter Monte Carlo) Spiegelhalter, Pearson and Short (2011), Visualising uncertainty about the future, Science 333
  6. One-at-a-time sensitivity (tornado) Saltelli and others (2008), Global Sensitivity Analysis: The Primer, Wiley

Data

The model runs on the teaching values set by the controls. To calibrate it for a place, read it against these admitted layers and series, which this page's map can draw:

  • Urban extents Natural Earth
  • Seaports Natural Earth
  • Past year, daily temperature (ERA5 via Open-Meteo) Open-Meteo.com (CC BY 4.0), Copernicus ERA5 (C3S/ECMWF) · register open-meteo.public-pages
  • Surface air temperature, daytime (AIRS) NASA AIRS · register nasa.gibs.context-live-layers
Transition and physical risk on a portfolio. Illustrative teaching model: it runs on the values set by the controls, not on measured data. Methods: Climate scenario families (NGFS (2023), Climate Scenarios for central banks and supervisors, Phase IV); Climate stress test of the financial system (Battiston and others (2017), Nature Climate Change 7); Damage function (Nordhaus (2017), Revisiting the social cost of carbon, PNAS 114).
06Sources

Where the evidence comes from.

Named public datasets and institutional records, each with its licence class. Sources by agreement are used only under their terms and never republished.

SourceWhat it givesLicence class
IFRS Foundation jurisdictional profilesAdoption of ISSB standards by jurisdictionFree to read, IFRS Foundation terms
BCBS disclosure of climate-related financial risks frameworkVoluntary bank disclosure templatesFree, BIS terms
PCAF standard and signatory listFinanced emissions methods and adoptersFree to read, PCAF terms
NZDPU (Net-Zero Data Public Utility)Company emissions and targets dataFree, terms to check
CDP disclosure dataSelf-reported climate, water and forest dataProprietary; summary results free to read
07Twin and cascade simulator

Trace a shock in disclosure and data to the balance sheet.

Assembled from the Nexus Standards area profile Climate risk standards: the shocks it names, the systems and sectors that carry the loss, the controls that dampen it and the data that observe it. Pick an initiating shock and step through the cascade to see which exposures it reaches and where losses could concentrate. The Map view places the run on an example geography with open data. Every weight is a stated assumption. An exercise, not a forecast, a valuation, a rating or investment advice. To model a place of your own choosing, open the full System Builder.

Hazards

  • Sea-level rise
  • Coastal flood (set off downstream)
  • Storm surge (set off downstream)
  • High-tide flooding (set off downstream)
  • Coastal erosion (set off downstream)
  • Saltwater intrusion (set off downstream)
  • Estuary flood (set off downstream)
  • Coastal habitat squeeze (set off downstream)
  • Wetland loss (set off downstream)
  • Mangrove loss (set off downstream)
  • Groundwater flood (set off downstream)
  • Climate-driven migration and relocation (set off downstream)
  • Mass displacement (set off downstream)

Controls

  • NS-0 Constitution and principles
  • NS-1 The UNI and the artefact catalogue (grammar v0.2: domain, sector, region and environment segments)
  • NS-3 Risk record UNIs (grammar, legacy crosswalk, allocation authority)
  • NS-3b Dataset and product metadata profile (STAC, DCAT, PROV-O)
  • NS-9 Contextual UNIs (deployments, instances, programme instances)
  • NS-11 Verification and monitoring (evidence, attestations, zero-trust conformance observation)
  • NS-14 Conformance and crosswalk to external standards
  • NRS-H65 Hazard family: Planetary boundary transgressions (NHS-1 planet.boundary)
  • NRS-H62 Hazard family: Compound and multi-hazard events (NHS-1 sys.compound)
  • NRS-H71 Hazard family: Deep-time and cosmic catastrophes (NHS-1 planet.deep-time)
  • NRS-H79 Hazard family: Mental health crises (NHS-1 health.mental)
  • NRS-H75 Hazard family: Climate-sensitive illness (NHS-1 health.climate-sensitive)
  • NRS-H7 Hazard family: Large-scale circulation anomalies (NHS-1 atmo.climate-mode)

Observation

  • ERA5 reanalysis (Copernicus Climate Data Store) (listed for reference)
  • CMIP6 climate projections (Copernicus Climate Data Store) (listed for reference)
  • NGFS Scenario Explorer (listed for reference)
  • INFORM Risk Index (listed for reference)
  • Number of deaths, missing persons and directly affected persons attributed to disasters per 100,000 population
  • Total greenhouse gas emissions per year
  • Direct economic loss attributed to disasters in relation to global GDP

Example geography

  • Pacific Island states: 150 hexagonal cells
  • Night lights tonight, outages (VIIRS Day/Night Band), NASA GIBS
  • Surface water through cloud, 30 m (OPERA DSWx-S1 radar), NASA GIBS
  • Rain rate, last half hour (IMERG), NASA GIBS
  • Vegetation disturbance alerts, 30 m (OPERA DIST-ALERT), NASA GIBS
08Decisions

Who decides, and what the evidence serves.

Climate and Nature Financial Risk prepares evidence. The decisions below are taken by the authorities named, under their own rules, and never by the platform.

Who decidesThe questionEvidence this page serves
Securities regulators and finance ministriesWhether and how to adopt ISSB standardsJurisdictional comparisons
Prudential supervisorsWhether to require the Basel climate disclosure frameworkFramework content and peer adoption
Bank and insurer audit committeesHow climate data are governed and assuredData quality and assurance practice
Data providers and usersWhich data to collect and estimateCoverage and quality evidence

Outputs this topic produces

  • Guide to climate and nature disclosure standards for financial institutions
  • Method note on financed emissions data quality
  • Brief on geolocation of exposures
  • Questions for boards on disclosure assurance
09Exposure, loss and capital

What disclosure and data means for exposure, loss and capital.

The exposure, loss, scenario and capital views a risk officer, supervisor or ministry of finance would ask for, with the frameworks they report against. Structures follow supervisory and actuarial practice. Values are illustrative: never prices, ratings or advice.

Scenario pathways

How disclosure and data could be stressed under the scenario families central banks and supervisors use.

OrderlyDisorderlyHot house world202520302035204020452050highlow
Scenario familyTransition riskPhysical riskWhat a stress test asks
OrderlyEarly, gradual policyLowerCan the book absorb a steady repricing?
DisorderlyLate, abrupt policyLower to mediumWhat breaks under a sudden repricing and credit migration?
Hot house worldLimited policyHigh and risingWhere do physical losses concentrate in collateral and insurance?
Scenario families as defined by the NGFS; the curves are an illustrative combined pressure index, not NGFS variables or forecasts.
NGFS climate scenarios · Network for Greening the Financial SystemIFRS S2 Climate-related Disclosures · ISSBTCFD recommendations · Financial Stability Board TCFDPrinciples for the effective management of climate-related financial risks · Basel Committee on Banking Supervision
10Core questions

What data specialists ask.

  • Where does each data point come from: reported, estimated or modelled?
  • How comparable are disclosures across firms, sectors and jurisdictions?
  • How reliable are third-party estimates where companies do not report?
  • Which data gaps matter most for risk analysis?
11Mechanisms

Why data quality is the binding constraint.

Disclosure frameworks, such as the standards of the International Sustainability Standards Board, the recommendations of the Task Force on Climate-related Financial Disclosures and the framework of the Taskforce on Nature-related Financial Disclosures, have improved consistency. But coverage is uneven, especially for smaller and private companies, and value-chain emissions are often estimated.

Where data are missing, providers estimate them using models, and different providers' estimates can differ substantially. Without clear labelling, estimated data can be mistaken for reported data, giving false precision.

12Methods and data

Assessing data quality.

  1. 01

    Data provenance labelling

    Distinguishing reported, estimated and modelled values. Labelling is inconsistent across providers.

  2. 02

    Comparability review

    Assessing consistency of definitions, scope and boundaries.

  3. 03

    Estimation methods review

    Understanding how missing data are estimated, using financial economics and macro-finance. Methods are often proprietary.

  4. 04

    Location data quality

    Assessing asset location data, with spatial statistics and geostatistics. See Model and measurement gaps.

13Methods

How it is studied, and what the methods cannot say.

  1. Financial economics and macro-financeCredit risk transmission · Market pricing studies · Cross-sector transmissionApplied here
  2. Spatial statistics and geostatisticsGeolocating exposures · Aggregating location risk · Resolution sensitivityApplied here
  3. Climate and atmospheric scienceHazard projections for portfolios · Tail and compound hazards · Scenario physical variablesApplied here
14Questions

Questions and answers.

What does IFRS S2 require of banks?
Disclosure of climate-related risks and opportunities, including scenario analysis and, for financial institutions, information on financed emissions and exposure to carbon-related assets.
Is the Basel climate disclosure framework mandatory?
It is voluntary at the international level; jurisdictions decide whether to require it for their banks.
What is a PCAF data quality score?
A score from one, the most reliable, to five, the least, describing the quality of data used to estimate financed emissions for each asset class.
Why do estimates from different providers differ?
Because they use different methods, assumptions and source data, especially where companies do not report.
What are value-chain emissions?
Emissions that occur in a company's supply chain and in the use of its products, often the largest share and the hardest to measure.
Does the platform provide or validate data?
No. It publishes guidance on data quality and comparability and does not assess any provider or dataset.
Is more disclosure always better?
Not necessarily. Disclosure helps when it is reliable, comparable and used. Volume without quality can mislead.
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