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.

12 min read0 figures7 tables27 notesNR-COUNTRY-CHE-2026-BASELINE

Contents
  1. ·Edition home
  2. ·Executive summary
  3. 1Switzerland’s risk starts in the mountains and runs through water
  4. 2Key findings
  5. 3Systems and sectors at baseline
  6. 4Risks and capability
  7. 5Dry year with low reservoirs and low river flows
  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 National source register
    3. B.3 Regional reading, Switzerland by canton
    4. B.4 Atlas card, Blatten (canton of Valais)
    5. B.5 Switzerland 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
Population9,127,100people31 Dec 2025Reported1
People aged 65 or over (provisional)1,811,000people2025Reported2
People under 20 (provisional)1,802,000people2025Reported2
Greenhouse-gas emissions, excl. land use40.1MtCO₂e2024Reported3
Reduction on 1990, excl. land use27.3%2024Reported3
Transport emissions13.4MtCO₂e2024Reported3
Emissions budget 2031–2035106.8MtCO₂e2025 contributionReported4
Hydropower share of domestic generation55.5%2025Reported6
Nuclear share of domestic generation27.2%2025Reported6
Photovoltaics output7,948GWh2025Reported6
Final electricity consumption57,970GWh2025Reported6
Reservoir fill, mid-July46%Jul 2026Reported8
Mean annual temperature above 1991–20201.2°C2025Reported12
Glacier volume lost in 2025≈3%2025Reported13
Heat-attributable deaths, May to September326deaths2024Reported17
People using safely managed drinking water97%2024Reported23
Forest area under protection7%2022Reported25
GDP growth1.4%2025Reported30
Food self-sufficiency rateNot bound%n/aNOT BOUND57
Heat-attributable deaths, 2025 seasonNot bounddeathsn/aNOT BOUND17
Protected area, share of national territoryNot bound%n/aNOT BOUND58
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
  • TRD
  • MIN
Table B.3National source register
SourceCategoryCoveragePeriodCadenceRole
Population release12national statisticsnational2025annualprofile
Emissions release3federal environment officenational2024annualCLI
Climate contribution45UNFCCC · trackernational2025periodicCLI
Energy statistics67federal energy officenational2025annualENE
Reservoir reports89federal energy office as reportednational2026weeklyENE
Drought records19202122federal office · research institutenational2026periodicWAT
Glacier and slope1314research institutesnational2025annualCLI
Insured loss16insurers’ pool as reportednational2026annualFIN
Heat monitoring1718research institute · journalnational2022–2024seasonalHLT
Forest and biodiversity252627federal office · research institutenational2018–2025decadalBIO
Risk analysis24civil protection officenational2025five-yearlySYS

B.3Regional reading, Switzerland by canton

Map plates for every canton follow in Q2 2027, when boundary sources and public-safe resolutions are bound. This page gives the regional reading in table form.

Selected regional figures9171920

≈20%

stations at a record low for the season, Apr–Jul 2026

394.97m

Lake Constance level, 11 Aug 2026

42.7%

reservoir fill, 9 Jul 2026

326deaths

heat-attributable, May to Sep 2024

Table B.4Regional reading, Switzerland by canton
RegionPrincipal hazardsSystems most exposedBaseline evidence
Plateau and Juradrought, heat, low rivers and lakeswater, farms, urban lifelinesrecord lows 20261920
Rhine basin and Basellow flow, river navigationwater, logisticsRhine flow at Basel, July 202620
Alps and Valaisglacier loss, rock avalanche, reservoirsenergy, settlementsBlatten 202514; reservoirs89
Ticino and southern Alpsheat, low snow, low reservoirshealth, energyheat deaths 202417; reservoirs9
Graubünden and eastern Alpslow snow, low reservoirs, slope failureenergy, villagesreservoir position9; slope scenario24
Lake Constance and Lake Zurichrecord-low lake levelswater, shippinglake levels 202620

B.4Atlas card, Blatten (canton of Valais)

  • village
  • Lötschental
  • glacier collapse
  • rock and ice avalanche
Systems in view
roads, power, housing, water and farms
Defining event
collapse of the Birch Glacier on 28 May 2025 under about 3 million m³ of rock debris14
Couplings
CLI → WAT → INF; INF → FIN
Capability evidence
restoration and reconstruction records not bound
Gaps
public reconstruction cost; recovery time; share of cost not insured
Agenda items
A-05

The glacier held about 5 million m³ of ice in 2023, and about 3 million m³ was affected when it failed under rock debris.

ICE

A small glacier under load

Residents were ordered out on 19 May. One person who was outside the evacuation zone died [15].

PEOPLE

The village was evacuated first

Insured damage was put at CHF 255 million, of which about CHF 240 million fell within the insurers’ pool. Public reconstruction cost was not retrieved.

LOSSES

CHF 255 million insured

B.5Switzerland system card

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

Table B.5Switzerland system card
SystemBaseline stateCoupling to watchCoverage
Waterrecord-low rivers and lakes in 2026dry year into hydropowerPARTIAL
Energyhydropower 55.5%; all gas importedwinter supply and storageGOOD
Fooddrought loans; rate not bounddrought into farm liquidityTHIN
Healthageing; heat deaths 326 in 2024heat load on older peoplePARTIAL
Biodiversitya third of species threatenedforest stress and habitat lossPARTIAL

Context

Archetype
federal, mountainous, high-income economy with Alpine hydropower and large electricity trade
Population
9.13 million (2025)1
Trade
electricity imports and exports were nearly equal in 20256
Hazard
glacier and rock collapse, Blatten 202514

Switzerland’s card sits beside its neighbours’; shared basins, grids, corridors and supply chains are read as one regional system.

EUROPE REGIONAL EDITION

One regional system

Swiss evidence enters the water, energy, food, finance and climate sector reports through the same finding identifiers, so a correction travels everywhere at once.

GLOBAL SECTOR SERIES

Same findings, same IDs

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

GLOBAL FLAGSHIP

Peers, not ranks

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-CHE-2026-BASELINE-v1.0.0
Print editionPDFAt releaseA4 portrait · screen, print and archival PDF, signed with the web edition at release.NR-COUNTRY-CHE-2026-BASELINE-v1.0.0
Indicator dataCSV · JSONOn this site21 indicators with unit, year, status and source; the machine-readable copy ships with the evidence bundle at release.NR-COUNTRY-CHE-2026-BASELINE data release v1
FiguresSVG · PNGOn this site4 on the web edition: headline figure, figure 1.3, coupling instrument, capability ladder.FIG-COUNTRY-CHE-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-CHE-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 (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. 1Federal Council (ed.), “Population growth slowed slightly in 2025”, release on final STATPOP results of the Federal Statistical Office (permanent resident population 9,127,100 on 31 December 2025, up 0.8%). Swiss Confederation, Neuchâtel, 20 August 2026. Observation year 2025. https://www.admin.ch/en/newnsb/eHho7S2A2revQdhyPSYmt, accessed 2026-11-03.back
  2. 2Federal Statistical Office (ed.), provisional population results 2025 (permanent resident population 9,124,300; 1,811,000 aged 65 or over and 1,802,000 under 20), as reported by Keystone-SDA on swissinfo.ch, 2 April 2026. FSO, Neuchâtel, 2026. Observation year 2025. https://swissinfo.ch/eng/demographics/population-the-proportion-of-seniors-exceeds-that-of-young-people-in-switzerland/91200057, accessed 2026-11-03. Press report of the release; provisional figures.back
  3. 3Federal Office for the Environment (FOEN) (ed.), “Inventaire des gaz à effet de serre pour l’année 2024: légère baisse des émissions” (40.1 MtCO₂e, 27.3% below 1990; buildings 8.8, industry 8.9, transport 13.4 MtCO₂e; international aviation and maritime 5.5 MtCO₂e). Swiss Confederation, Bern, 13 April 2026. Observation year 2024. https://www.admin.ch/fr/newnsb/0x0fdVaborNCilTCosvky, accessed 2026-11-03.back
  4. 4Switzerland (ed.), Switzerland’s second nationally determined contribution under the Paris Agreement 2031–2035. Federal Office for the Environment for the UNFCCC, Bern, January 2025. Observation years 2022–2035. https://unfccc.int/sites/default/files/2025-01/Switzerland%20second%20NDC%202031-2035.pdf, accessed 2026-11-03.back
  5. 6Swiss Federal Office of Energy (SFOE) (ed.), Energy Consumption in Switzerland 2025, extract from the Swiss Overall Energy Statistics 2025 (ENSTAT). SFOE, Bern, June 2026. Observation year 2025. https://pubdb.bfe.admin.ch/en/publication/download/12648, accessed 2026-11-03.back
  6. 8SRF and swissinfo.ch (eds.), “Swiss reservoir water levels lowest in 20 years” (46% full, 16.4 points below the 20-year average, per the SFOE weekly report; reservoirs cover about 20% of winter-half demand). swissinfo.ch, 17 July 2026. Observation year 2026. https://www.swissinfo.ch/eng/climate-adaptation/swiss-reservoir-water-levels-lowest-in-20-years/91760665, accessed 2026-11-03. Press report of SFOE figures.back
  7. 12MeteoSwiss (ed.), national temperature for 2025 (1.2 °C above the 1991–2020 norm; fourth-warmest year since 1864), as reported by Keystone-SDA on swissinfo.ch, 19 December 2025. MeteoSwiss, Zurich, 2025. Observation year 2025. https://www.swissinfo.ch/eng/climate-adaptation/2025-is-the-fourth-warmest-year-in-switzerland-since-measurements-began/90668352, accessed 2026-11-03. Press report; the final annual bulletin was not rendered.back
  8. 13ETH Zurich (ed.), Swiss glaciers lost almost 3% of their volume in 2025 and about a quarter since 2015 (GLAMOS monitoring, Swiss Commission for Cryosphere Observation), as published by ScienceDaily, 2 October 2025. ETH Zurich, 2025. Observation year 2025. https://www.sciencedaily.com/releases/2025/10/251001092211.htm, accessed 2026-11-03.back
  9. 17Swiss TPH (ed.), HiMOMO: Monitoring heat-related deaths (542 deaths May to September 2023, 95% interval 364 to 715; 326 deaths May to September 2024, 95% interval 171 to 471). Swiss Tropical and Public Health Institute, Allschwil, for the Federal Office for the Environment, 2023–2026. Observation years 2023–2024. https://www.swisstph.ch/en/projects/project-detail/project/monitoring-heat-related-deaths, accessed 2026-11-03.back
  10. 23UN-Water (ed.), SDG 6 data portal: Switzerland (safely managed drinking water 97% and sanitation 100% in 2024; water stress 6.5% in 2023). UN-Water, 2025. Observation year 2024. https://sdg6data.org/country-or-area/Switzerland, accessed 2026-11-03. The portal does not name the source agency for each indicator.back
  11. 25FOEN and WSL (eds.), Forest Report 2025: Development, Condition and Use of Swiss Forests (1.3 million hectares; 7% of forest area protected by 2022; goal of 10% by 2030). FOEN and WSL, Bern and Birmensdorf, 2025. Observation year 2022. https://www.bafu.admin.ch/dam/en/sd-web/VL0obw1MJTg3/waldbericht_2025.pdf, accessed 2026-11-03. Synthesis chapter read.back
  12. 30State Secretariat for Economic Affairs (SECO) (ed.), GDP 2025 (growth 1.4%; fourth quarter +0.2%), as reported by swissinfo.ch, 16 February 2026. SECO, Bern, 2026. Observation year 2025. https://www.swissinfo.ch/eng/global-trade/the-swiss-economy-grew-slightly-at-the-end-of-last-year/90949789, accessed 2026-11-03. Press report of the release.back
  13. 57UNVERIFIED, not opened: Federal Office for Agriculture (FOAG) and Federal Statistical Office (eds.), Agrarbericht and food supply balance: self-sufficiency rate. Bern and Neuchâtel, 2025–2026. Observation year to be confirmed. Source that would fill the self-sufficiency gap; a press report of a 2023 gross rate was seen but not used.back
  14. 58UNVERIFIED, not opened: FOEN (ed.), Biodiversity indicators and action plan 2025–2030: protected areas as a share of national territory. FOEN, Bern, 2025. Observation year to be confirmed. Source that would fill the protected-area gap.back
  15. 5Climate Action Tracker (ed.), Switzerland: 2035 NDC assessment (rating insufficient; share of the target met abroad not disclosed; submission on 29 January 2025). Climate Analytics and NewClimate Institute, February 2025. Observation year 2025. https://climateactiontracker.org/countries/switzerland/2035-ndc/, accessed 2026-11-03.back
  16. 7Keystone-SDA (ed.), “Swiss energy consumption rose slightly in 2025”, reporting SFOE figures (final energy consumption 777,870 TJ; renewables 27.5% of final energy consumption). swissinfo.ch, 18 June 2026. Observation year 2025. https://www.swissinfo.ch/eng/various/energy-consumption-in-switzerland-rose-slightly-in-2025/91610187, accessed 2026-11-03. Press report; the renewable share differs from another reported basis and is not used as a finding.back
  17. 9Keystone-SDA (ed.), “Swiss reservoirs, which are relatively low, must hope for a wet autumn” (42.7% full, 15.1 points below the 20-year average per the SFOE; Valais holds about 45% of storage). swissinfo.ch, 9 July 2026. Observation year 2026. https://www.swissinfo.ch/eng/climate-adaptation/swiss-reservoirs-which-are-relatively-low-must-hope-for-a-wet-autumn/91724015, accessed 2026-11-03. Press report of SFOE figures.back
  18. 19FOEN (ed.), statement to Keystone-SDA on drought: historic lows at eleven stations in July 2026; about one-fifth of stations at a record low for the period from 1 April to 31 July. Published by blue News, 13 August 2026. Observation year 2026. https://www.bluewin.ch/en/news/drought-causes-swiss-water-levels-to-drop-to-record-lows-li.3561545, accessed 2026-11-03. Press report of a federal statement.back
  19. 20L. Jorio (ed.), “Drought in Switzerland: Europe’s water tower runs dry” (Lake Zurich lowest since records began in 1951 on 19 August 2026; Lake Constance 394.97 m on 11 August, 27 cm below the previous 1991–2020 low; Rhine at Basel in July below summer 2003). swissinfo.ch, 21 August 2026. Observation year 2026. https://www.swissinfo.ch/eng/climate-adaptation/drought-in-switzerland-europes-water-tower-runs-dry/91913797, accessed 2026-11-03. Press report; FOEN is the cited data source.back
  20. 21WSL Institute for Snow and Avalanche Research SLF (ed.), “The heat is gone, but the drought remains” (interview with M. Brunner; Rhine, Aare and Lake Constance at record lows; snowpack at most half the long-term average in the Dischma Valley). SLF, Davos, 12 June 2026. Observation year 2026. https://www.slf.ch/en/news/the-heat-is-gone-but-the-drought-remains/, accessed 2026-11-03.back
  21. 22K. F. Brandt and S. Pasino (eds.), “How much water is left under Switzerland? Nobody can say yet” (more than 80% of drinking water from larger underground sources; 42 monitored springs; whole country at the highest drought danger level on 6 August 2026). swissinfo.ch, 24 August 2026. Observation year 2026. https://www.swissinfo.ch/eng/climate-solutions/how-much-water-is-left-under-switzerland-nobody-can-say-yet/91915172, accessed 2026-11-03. Press report; the federal environment office is the cited source.back
  22. 14D. Farinotti, M. Huss, M. Jacquemart and M. Werder (eds.), Fact sheet for the now-collapsed Birchgletscher, Switzerland, document 88028-VAW-2025-06. VAW, ETH Zurich, Zurich, 2 June 2025. Observation year 2025. https://raonline.ch/pages/edu/pdfNW/VAW_BirchgletscherFS2025.pdf, accessed 2026-11-03.back
  23. 16Insurers’ natural hazard pool (ed.), annual financial statements: Blatten landslide, total insured damage CHF 255 million (CHF 240 million within the pool; more than 80% of insured sums for total losses paid after four months), as reported by swissinfo.ch, 26 May 2026. Observation year 2025. https://www.swissinfo.ch/eng/various/blatten-landslide-caused-damage-totalling-255-million-francs/91473640, accessed 2026-11-03. Press report of pool statements.back
  24. 18A. M. Vicedo-Cabrera, E. de Schrijver, D. L. Schumacher, M. S. Ragettli, E. M. Fischer and S. I. Seneviratne, heat-related mortality in Switzerland, summer 2022 (623 deaths, 3.5% of deaths; about 60% attributable to human-induced warming), Environmental Research Letters, 2023, as summarised in a University of Bern release, 4 July 2023. Observation year 2022. https://mediarelations.unibe.ch/media_releases/2023/media_releases_2023/global_warming_caused_60_percent_of_swiss_heat_deaths_in_the_summer_of_2022/index_eng.html, accessed 2026-11-03.back
  25. 26FOEN and WSL (eds.), Swiss National Forest Inventory, fifth survey (LFI5), interim results for survey years 2018–2022 (dead trees 7.2% to 15.4% of trees by region). Bern and Birmensdorf, 9 September 2024. Observation years 2018–2022. https://www.bafu.admin.ch/de/schweizerisches-landesforstinventar-lfi, accessed 2026-11-03.back
  26. 27FOEN (ed.), Biodiversity: state of biodiversity (about a third of species and nearly half of habitat types threatened). Swiss Confederation, Bern, page current February 2026. Observation year 2026. https://www.bafu.admin.ch/en/biodiversity, accessed 2026-11-03.back
  27. 24Federal Office for Civil Protection (BABS) (ed.), Katastrophen und Notlagen Schweiz 2025: Bericht zur nationalen Risikoanalyse (KNS 2025; 44 hazard dossiers; pandemic and prolonged power shortage the largest risks). BABS, Bern, February 2026. Observation year 2025. https://www.babs.admin.ch/dam/de/sd-web/PpZZg4eroKXo/KNS-2025-Risikobericht-final_de.pdf, accessed 2026-11-03. Report read in part (summary and results chapter).back

Cite this annex

Valadbaygi, S. (Ed.). (2026). Annex B: Data appendix. In Switzerland Systems Risk and Resilience Report 2026: The State of Switzerland’s Interdependent Systems (Baseline Edition 2026, Report No. NR-COUNTRY-CHE-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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