Draft, not yet released. In stewardship review. Not indexed until the first approved release.

Data appendix

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

10 min read0 figures8 tables16 notesNR-STRATEGIC-COMMONS-GLOBAL-2026-BASELINE

Contents
  1. ·Edition home
  2. ·Executive summary
  3. 1Shared spaces change together
  4. 2Key findings
  5. 3Systems and sectors at baseline
  6. 4Risks and capability
  7. 5High seas treaty implementation and the first protected areas
  8. 6Readings from the other desks
  9. 7The 2027 agenda
  10. 8Systems in depth
  11. AMethodology
  12. BData appendix
    1. B.1 The indicator set
    2. B.2 Global source register
    3. B.3 Regional reading, ten regional clusters
    4. B.4 Regional card: the Arctic
    5. B.5 How countries appear in the global edition
    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.1Global baseline indicator set
IndicatorValueUnitYearStateSource
Arctic sea ice minimum, September 20254.60million km²2025Reported1
Arctic sea ice minimum, USNIC 3-day average4.86million km²2025Reported2
Arctic sea ice maximum, March 2026, NSIDC14.29million km²2026Reported2
Antarctic sea ice maximum, September 202517.81million km²2025Reported7
Greenland ice sheet loss129billion tons2025Reported3
Sea level rise since 1993115.2mm2024Reported6
Sea level rise rate4.4mm a year2024Reported6
Sea level rate, 2016 to 20254.1mm a year2025Reported5
Reef thermal tipping point, central estimate1.2°C2025Estimated9
Planetary boundaries breached7 of 9count2025Reported10
Assessed stocks that are sustainable62.4%2024Reported21
Landings from sustainable stocks72.6%2024Reported21
High seas under protected areas1.45%2026Reported16
Parties to the high seas treaty105parties2026Reported11
Acceptances of the fisheries subsidies agreement123members2026Reported12
Indicators, CSVIndicators, JSON

B.2Global 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

  • CLI
  • BIO
  • FOO
  • INF
  • MIN
  • TRD
  • ENE
  • WAT
  • FIN
  • DAT
Table B.3Global source register
SourceCategoryCoveragePeriodCadenceRole
NSIDC Sea Ice Today1university data centreArctic2025annualsea ice extent
USNIC press release2national agenciesArctic2026annualdataset differences
NOAA Arctic Report Card3national agencyArctic2025annualArctic change
WMO update5UN agencyglobal2025annualsea level rate
NASA sea level6national agencyglobal2024continuoussea level
Global Tipping Points Report9research consortiumglobal2025periodicreef threshold
Planetary Health Check10research consortiumglobal2025annualacidification
UN Treaty Collection11UN depositaryglobal2026per eventtreaty status
WTO acceptances12trade bodyglobal2026per eventsubsidy rules
ESA Space Environment Report17space agencyglobal2025annualorbital health

B.3Regional reading, ten regional clusters

Map plates follow with the regional Baseline Editions, when boundary sources and public-safe resolutions are bound. This page gives the regional reading in table form and ranks no region.

Table B.4Regional reading, ten regional clusters
RegionPrincipal hazardsSystems most exposedBaseline evidence
North AmericaArctic coasts; deep seabed licensing; storm surgeice, coast, seabedNOAA342
South Americareefs; fisheries; Antarctic gatewayfish, reefsregional statistics (not bound)
EuropeNorth Atlantic and Arctic waters; shipping rulesshipping, iceIMO41
EurasiaArctic coastline and shipping routesice, shippingArctic Report Card3
Middle East and North Africawarm seas; coastal exposurereefs, coastbleaching record8
Africafisheries and coastal communitiesfish, coastFAO via21
South Asiasea level and storm surgecoast, fishsea level record6
East Asiafisheries; shipping; reefsfish, shippingFAO via21; WTO12
ASEANcoral triangle reefs; coastal exposurereefs, fishtipping point report9
Oceania-Pacificisland states; reefs; sea levelreefs, coastsea level record6;9

B.4Regional card: the Arctic

  • region
  • ice
  • air temperature
  • ice sheet
Systems in view
sea ice, ice sheet, coasts, shipping routes
Defining events
lowest winter sea ice maximum in the record, March 20253
Couplings
CLI → INF; CLI → BIO
Capability evidence
long public satellite series13
Gaps
ice thickness; activity counts on a common basis
Agenda items
C-02 · C-07

The September 2025 minimum was 4.60 million km², tenth lowest in the 47-year record, and all 19 of the lowest September minimums fall in the last 19 years [1] [3].

ICE

Sea ice

Arctic air from October 2024 to September 2025 was the warmest since 1900 and warming since 2006 has been more than twice the global rate [3].

AIR

Warming

The ice sheet lost an estimated 129 billion tons in 2025, below the 2003 to 2024 average of 219 billion tons [3].

LAND ICE

Greenland

B.5How countries appear in the global edition

Countries enter the global commons edition through the ocean and coastal chapters of their own national editions, on one card grammar. They are read against peer distributions and thresholds, never placed in a league table.

Table B.5How countries appear in the global edition
Card fieldWhat it showsSource
WEFH+B stateeach core system against peer distribution bandsnational edition
Couplingsthe national dependency matrixnational edition
Risk objectsthe national risk portfolionational edition
Capability rungsthe national capability laddernational edition
Evidence ageoldest and newest source datesnational source register

Editions in the 2026 Baseline programme

26national

countries and unions

10regional

clusters

16global

flagship and sector

14strategic

systems reports

20frontier

technology reports

How to read a country card

  • Each system is shown against the distribution of its peers, with thresholds where they exist
  • Couplings and risk objects come from the country’s own national edition
  • Capability rungs record evidence, not a judgement of institutions
  • Evidence age is printed, so older national data are visible as such
Table B.6National Baseline Editions in the 2026 programme
WaveCountries and unionsState
W0CanadaISSUED
W1United States, United Kingdom, France, Germany, Italy, Japan, European Union, SwitzerlandPLANNED
W2Mexico, Brazil, Argentina, Türkiye, Russian Federation, Saudi Arabia, United Arab Emirates, South Africa, Senegal, Kenya, African Union, India, China, Republic of Korea, Indonesia, Singapore, AustraliaPLANNED

B.6Licences

Table B.7Licences 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.8This edition in every format
FormatKindStateWhat it isIdentifier
Web editionHTMLOn this siteDraft in stewardship review; every value resolves to its source.NR-STRATEGIC-COMMONS-GLOBAL-2026-BASELINE-v1.0.0
Print editionPDFAt releaseA4 portrait · screen, print and archival PDF, signed with the web edition at release.NR-STRATEGIC-COMMONS-GLOBAL-2026-BASELINE-v1.0.0
Indicator dataCSV · JSONOn this site15 indicators with unit, year, status and source; the machine-readable copy ships with the evidence bundle at release.NR-STRATEGIC-COMMONS-GLOBAL-2026-BASELINE data release v1
FiguresSVG · PNGOn this site4 on the web edition: headline figure, figure 1.3, coupling instrument, capability ladder.FIG-STRATEGIC-COMMONS-GLOBAL-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
DC-STRATEGIC-COMMONS-GLOBAL-2026-B0, 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 (in Annex C)
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. 1NSIDC (ed.), Arctic sea ice has likely reached its minimum extent for 2025 (Sea Ice Today analysis, relayed by CIRES; minimum 4.60 million km² on 10 September 2025; tenth lowest in the 47-year record). National Snow and Ice Data Center, Boulder. Observation year 2025. Accessed 2026-11-03.back
  2. 2US National Ice Center (ed.), Arctic Sea Ice at Minimum and Maximum Extents, 2025 to 2026 (press release; USNIC 3-day minimum 4.86 million km² in September 2025; 2026 maximum 14.53 million km² on 6 to 8 March by USNIC and 14.29 million km² on 15 March by NSIDC). US National Ice Center, Suitland. Observation year 2026. Accessed 2026-11-03.back
  3. 7NSIDC (ed.), Sea Ice Today analyses (Antarctic maximum 17.81 million km² on 17 September 2025, third lowest; Antarctic minimum 1.98 million km² on 1 March 2025, tied second lowest). National Snow and Ice Data Center, Boulder. Observation year 2025. Accessed 2026-11-03.back
  4. 3NOAA (ed.), Arctic Report Card 2025 (summary page; air temperature, sea ice, precipitation and Greenland ice sheet findings). National Oceanic and Atmospheric Administration, Silver Spring. Observation year 2025. Accessed 2026-11-03.back
  5. 6NASA (ed.), Global Mean Sea Level (key indicator page; 115.2 mm rise since 1993; current rate 4.4 mm a year). National Aeronautics and Space Administration, Pasadena. Observation year 2024. Accessed 2026-11-03.back
  6. 5WMO (ed.), 2025 set to be second or third warmest year on record (update for COP30; sea level rate from 2.1 mm a year in 1993 to 2002 to 4.1 mm a year in 2016 to 2025; over 90% of excess energy in the ocean). World Meteorological Organization, Geneva. Observation year 2025. Accessed 2026-11-03.back
  7. 9National Oceanography Centre (ed.), Global Tipping Points Report 2025 reveals first Earth system tipping point reached (summary page; warm-water reefs passing their thermal tipping point, central estimate 1.2 °C, range 1 to 1.5 °C, warming about 1.4 °C; more than 160 scientists at 87 institutions). NOC, Southampton. Observation year 2025. Accessed 2026-11-03.back
  8. 10Stockholm Resilience Centre (ed.), Seven of nine planetary boundaries now breached (Planetary Health Check 2025 news page of 24 September 2025; ocean acidification breached for the first time; surface pH down about 0.1 units). Stockholm Resilience Centre, Stockholm. Observation year 2025. Accessed 2026-11-03.back
  9. 21Marine Stewardship Council (ed.), Five takeaways from the FAO SOFIA report 2026 (summary page of 19 June 2026; 62.4% of stocks sustainable against 64.5% two years earlier; 72.6% of landings from sustainable stocks; 235 million tonnes produced in 2024; trade USD 184 billion). MSC, London. Observation year 2024. Accessed 2026-11-03.back
  10. 16UNEP-WCMC and IUCN (eds.), Protected Planet, marine protected areas page (areas beyond national jurisdiction 61% of the ocean; 1.45% covered by protected areas and other effective area-based measures). UNEP-WCMC, Cambridge. Observation year 2026. Accessed 2026-11-03.back
  11. 11United Nations (ed.), Agreement under the UN Convention on the Law of the Sea on the conservation and sustainable use of marine biological diversity of areas beyond national jurisdiction (status page, UN Treaty Collection; entry into force 17 January 2026; 145 signatories and 105 parties as shown on the page when read). United Nations, New York. Observation year 2026. Accessed 2026-11-03.back
  12. 12WTO (ed.), Acceptances of the Protocol Amending the Marrakesh Agreement, Agreement on Fisheries Subsidies (acceptance list; entry into force 15 September 2025; 123 acceptances; latest date shown 20 July 2026). World Trade Organization, Geneva. Observation year 2026. Accessed 2026-11-03.back
  13. 17European Space Agency (ed.), ESA Space Environment Report 2026 (report page of 14 September 2026; data to end 2025; health index from about 4 to about 50; more than 300 launches and over 4,000 payloads in 2025). ESA, Darmstadt. Observation year 2025. Accessed 2026-11-03.back
  14. 42NOAA (ed.), NOAA advances review of first-ever deep seabed mining commercial recovery application (news release of 19 August 2026; application submitted 6 February 2026; found in full compliance with the information requirements of the Deep Seabed Hard Mineral Resources Act; opened as a pre-close source for [14]). National Oceanic and Atmospheric Administration, Silver Spring. Observation year 2026. Accessed 2026-11-03.back
  15. 41Herbert (ed.), MEPC ES2 Meeting Brief (law-firm briefing page dated 2026-01-20; adjournment of the Net-Zero Framework session by a vote of 57 in favour, 49 against and 21 abstentions after a one-year adjournment motion; opened as a pre-close source for [13]). Herbert, law-firm briefing. Observation year 2025. Accessed 2026-11-03.back
  16. 8NOAA (ed.), NOAA confirms 4th global coral bleaching event (news release of 15 April 2024; bleaching documented from February 2023 to April 2024). National Oceanic and Atmospheric Administration, Silver Spring. Observation year 2024. Accessed 2026-11-03.back

Cite this annex

Valadbaygi, S. (Ed.). (2026). Annex B: Data appendix. In Strategic Systems Report 2026: Oceans, Arctic and Global Commons (Baseline Edition 2026, Report No. NR-STRATEGIC-COMMONS-GLOBAL-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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