Data appendix

The indicator set with its sources, the source registers, the licences of every kind of material and the formats of the edition.

7 min read0 figures7 tables16 notesNR-COUNTRY-GBR-2026-BASELINE.

Contents
  1. ·Edition home
  2. ·Executive summary
  3. 1Britain’s risk is coupled, not cumulative
  4. 2Key findings
  5. 3Systems and sectors at baseline
  6. 4Risks and capability
  7. 5Hot, dry summer in southern England
  8. 6Lenses and readings
  9. 7The 2027 agenda
  10. 8Systems in depth
  11. AMethodology
  12. BData appendix
    1. B.1 The indicator set
    2. B.2 National source register
    3. B.3 Regional reading, the four nations and English regions
    4. B.4 Atlas card, London
    5. B.5 United Kingdom system card
    6. B.6 Licences
    7. B.7 Formats and provenance
  13. CReferences and record
  14. ·Complete edition, for print

B.1The indicator set

Table B.1Baseline indicator set
IndicatorValueUnitYearStateSource
Territorial GHG emissions373Mt CO₂e2024Reported1
Change since 1990−53%2024Reported1
Last coal power station closedSept20242024Reported18
Record temperature40.3°C2022Reported28
Warmest year mean temperature10.03°C2022Reported29
Heat-associated deaths, England2,985deaths2022Reported11
Properties at flood risk, England6.3million2024Reported8
Properties at flood risk by 2050≈8million2050Scenario8
Water-supply shortfall by 2055≈5bn litres/day2055Scenario9
Storm overflow spills>460,000spills2023Reported10
Population68.3millionmid-2023Reported13
Domestic share of food consumed≈60%2023Reported14
Change in species abundance−19%1970–2021Reported15
Species at risk of extinction, GB≈16%2023Reported15
National risks in register89risks2023Reported7
Climate risks and opportunities61items2021Reported4
Indicators, CSVIndicators, JSON

B.2National source register

The governed source set behind this edition. Each source keeps its authority, coverage, cadence and role; categories describe origin, not truth.

Domains bound by the register

  • WAT
  • ENE
  • FOO
  • HLT
  • BIO
  • CLI
  • INF
  • FIN
  • DAT
  • TRD
Table B.3National source register
SourceCategoryCoveragePeriodCadenceRole
GHG emissions statistics1official statisticsUK1990–2024annualCLI · ENE
State of the UK Climate3peer-reviewedUKto 2024annualCLI
CCRA345statutory assessmentUK2021–2022five-yearlyCLI
National Risk Register7governmentUK2023periodicall
Flood assessment8technical authorityEngland2024periodicWAT
Water resources framework9technical authorityEnglandto 2055periodicWAT
Storm overflows10technical authorityEngland2023annualWAT
Heat mortality11public health agencyEngland2022annualHLT
Population13official statisticsUKmid-2023annualprofile
Food security14governmentUK2023three-yearlyFOO
State of Nature15civil societyUK1970–2021periodicBIO
Substation fire review19system operatorGB2025one-offINF

B.3Regional reading, the four nations and English regions

Map plates for each nation and region follow in Q2 2027. This page gives the regional reading in table form, and ranks no nation or region.

Table B.4Regional reading, the four nations and English regions
AreaPrincipal hazardsSystems most exposedBaseline evidence
Scotlandstorms, river flooding, coastal erosionpower networks, rural transportCCRA34
Northern Irelandstorms, floodingpower, water, agricultureCCRA34
Walesriver and surface-water floodingcommunities, transportCCRA34
North of Englandriver flooding, stormshousing, rail, industryflood assessment8
Midlandsriver flooding, heattransport hubs, agricultureflood assessment8
East of Englanddrought, coastal floodingagriculture, water supplywater framework9
London and South Eastheat, surface-water flooding, water stresshealth, transport, waterheat11 · water9
South Westcoastal flooding, stormscoasts, tourism, railflood assessment8

The leading compound pathway runs through the South and East: hot, dry summers, a projected supply shortfall and dense populations exposed to heat.

SOUTH AND EAST

Heat and water stress

Surface-water flooding drives most flood exposure and hits dense urban areas hardest.

CITIES

Surface water

Winter storms test power networks and rural transport in Scotland, Wales and Northern Ireland.

NATIONS

Storms and networks

B.4Atlas card, London

  • city
  • river basin
  • grid region
  • transport hub
Systems in view
health, water, transport, power
Defining events
40 °C heat in July 202228; surface-water flooding in 2021; Heathrow substation outage in March 202519
Couplings
CLI → HLT heat; WAT → INF surface water; ENE → INF single points of failure
Capability evidence
heat-health and flood warnings used in real events
Gaps
heat surge capacity; drainage capacity; lifeline redundancy
Agenda items
A-01 · A-02 · A-03

London’s urban heat island amplifies heatwaves, and older residents in poorly ventilated homes face the highest risk [11] [12].

HEALTH

Heat in a dense city

Intense summer storms overwhelm drainage built for a cooler, smaller city.

WATER

Surface-water flooding

One substation fire halted Europe’s busiest airport for most of a day [19].

INFRASTRUCTURE

Single points of failure

B.5United Kingdom system card

The card through which the United Kingdom appears in the Europe regional edition and the global series. It summarises; it does not rank.

Table B.5United Kingdom system card
SystemBaseline stateCoupling to watchCoverage
Waterflood exposure rising; supply shortfall projectedheat and droughtGOOD
Energycoal ended; clean power plannedgrid single points of failureGOOD
Foodabout 60% domestic productionimport pricesGOOD
Healthheat burden risingheat and care capacityPARTIAL
Biodiversitylong-run declinehabitat and water qualityGOOD

The UK card sits beside European neighbours; interconnectors, food trade and shared seas are read as one regional system.

EUROPE REGIONAL EDITION

One regional system

UK evidence enters the water, energy, food, finance and climate sector reports through the same finding identifiers.

GLOBAL SECTOR SERIES

Same findings, same IDs

In the global edition the UK is read against peer distributions and thresholds, never placed in a league table.

GLOBAL FLAGSHIP

Peers, not ranks

Context

Archetype
high-income island economy with a temperate maritime climate
Population
68.3 million (mid-2023)13
Emissions
53% below 1990 (2024)1
Food
about 60% produced domestically14

B.6Licences

Table B.6Licences of each kind of material
MaterialLicence
TextCC BY 4.0
Dataon the licence of each source; Nexus tables CC BY 4.0
FiguresNexus figures CC BY 4.0; third-party as credited
Mapsboundary source and licence printed on each plate
MetadataCC0 1.0, as Zenodo publishes it
Third-party data, figures and textThe source’s own licence, credited where it is used; never relicensed
Nexus-authored text, tables and figures: CC BY 4.0 (SPDX CC-BY-4.0). Map plates print their boundary source and licence.

B.7Formats and provenance

Table B.7This edition in every format
FormatKindStateWhat it isIdentifier
Web editionHTMLOn this siteDraft in stewardship review; every value resolves to its source.NR-COUNTRY-GBR-2026-BASELINE-v1.0.0
Print editionPDFAt releaseA4 portrait · screen, print and archival PDF, signed with the web edition at release.NR-COUNTRY-GBR-2026-BASELINE-v1.0.0
Indicator dataCSV · JSONOn this site16 indicators with unit, year, status and source; the machine-readable copy ships with the evidence bundle at release.NR-COUNTRY-GBR-2026-BASELINE data release v1
FiguresSVG · PNGOn this site4 on the web edition: headline figure, figure 1.3, coupling instrument, capability ladder.FIG-COUNTRY-GBR-2026-BASELINE-*
SlidesPDFNot recordedNo slide deck is recorded for this edition.
Evidence briefHTML · PDFNot recordedNo evidence brief is recorded for this edition.
Dataset with DOIDataCiteAt releaseConcept and version DOI are minted at deposit; none is recorded yet.

Provenance

Edition pack
The edition’s content pack (JSON), from which the print and web editions are built
Evidence cut
NQ-GBR-2026-Q0-1, closed 30 September 2026
Reproducibility
sourced values cited; analytical values reproducible from stated parameters
Self-check
14 of 23 at evidence close; a fail on any item blocks release
Review
five passes scheduled before release
Publisher of record
The Global Centre for Risk and Innovation (GCRI) for the Nexus Consortium
Corrections
Registry correction pathway; upheld corrections are published as notices with a new version

Notes

Numbers are the edition’s reference numbers, so a note reads the same in every chapter. The full list, with every source and its licence, is in Annex C. Annex C, references.

  1. 1Department for Energy Security and Net Zero (ed.), 2024 UK Greenhouse Gas Emissions, Final Figures. DESNZ, London, 5 February 2026.back
  2. 18Department for Energy Security and Net Zero (ed.), “End of coal power”, closure of Ratcliffe-on-Soar power station. Press release, London, 30 September 2024.back
  3. 28Met Office (ed.), “Record high temperatures verified” (40.3 °C at Coningsby, 19 July 2022). Met Office, Exeter, 2022.back
  4. 29Met Office (ed.), “2022: the UK’s warmest year on record.” Met Office, Exeter, January 2023.back
  5. 11UK Health Security Agency (ed.), Heat Mortality Monitoring Report: 2022. UKHSA, London, 2023.back
  6. 8Environment Agency (ed.), National Assessment of Flood and Coastal Erosion Risk in England 2024. Environment Agency, Bristol, December 2024.back
  7. 9Environment Agency (ed.), National Framework for Water Resources 2025. Environment Agency, Bristol, 2025.back
  8. 10Environment Agency (ed.), Event Duration Monitoring: storm overflows annual data 2023. Environment Agency, Bristol, 2024.back
  9. 13Office for National Statistics (ed.), Population estimates for the UK, England, Wales, Scotland and Northern Ireland: mid-2023. ONS, Newport, 2024.back
  10. 14Department for Environment, Food and Rural Affairs (ed.), United Kingdom Food Security Report 2024. DEFRA, London, December 2024.back
  11. 15State of Nature Partnership (ed.), State of Nature 2023. State of Nature Partnership, UK, 2023.back
  12. 7Cabinet Office (ed.), National Risk Register 2023 edition. HM Government, London, 2023.back
  13. 4Climate Change Committee (ed.), Independent Assessment of UK Climate Risk: Advice to Government for the UK’s Third Climate Change Risk Assessment (CCRA3). CCC, London, 2021.back
  14. 3M. Kendon et al., “State of the UK Climate 2024,” International Journal of Climatology, vol. 45, 2025.back
  15. 5HM Government (ed.), UK Climate Change Risk Assessment 2022. HM Government, London, January 2022.back
  16. 19National Energy System Operator (ed.), North Hyde substation fire: review of the 21 March 2025 outage. NESO, Warwick, 2025.back

Cite this annex

Valadbaygi, S. (Ed.). (2026). Annex B: Data appendix. In United Kingdom Systems Risk and Resilience Report 2026: The State of the United Kingdom’s Interdependent Systems (Baseline Edition 2026, Report No. NR-COUNTRY-GBR-2026-BASELINE) [Draft under review]. The Global Centre for Risk and Innovation (GCRI).

Every citation form of the whole report, BibTeX and RIS included, is on the edition home. Cite this report.

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