- Republic of Korea 2026
- Executive summary
Executive summary
The edition on a few pages: the abstract, the key messages, the headline finding and what each steward reads in it.
Contents
- ·Edition home
- ·Executive summary
- 1Korea’s risk is demographic, climatic and import-dependent at once
- 2Key findings
- 3Systems and sectors at baseline
- 4Risks and capability
- 5Heat and heavy-rain sequence over the capital region
- 6Readings from the other desks
- 7The 2027 agenda
- 8Systems in depth
- AMethodology
- BData appendix
- CReferences and record
- ·Complete edition, for print
S.1Abstract
The Republic of Korea (대한민국) enters 2027 as a high-income economy of 51.68 million people and about US$1.87 trillion of output in 20252, with one of the lowest fertility rates in the world and an ageing society. Births rose 6.7% in 2025 to about 254,300, yet total fertility stood at 0.63 in Seoul and 1.09 in Jeonnam1. In December 2025 Korea submitted a 2035 target of 53% to 61% below 2018, including land use7, while Climate Action Tracker projects 2030 emissions only 11% to 19% below 2018 under current policies6. Fossil fuels supplied 60% of electricity in 2025 and solar and wind 7%5, and Korea expects to import 16.7 million tonnes of cereals in 2026/278. Several national series that this edition set out to bind, among them greenhouse-gas inventory totals, water supply, protected areas, heat illness, wildfire and flood losses, could not be read at evidence close and appear as designed gaps with their source and blocker. This Baseline Edition fixes the reference state for Korea’s water, energy, food, health and biodiversity systems, maps the couplings through which heat, rain, seismic and supply shocks travel, and sets the questions the first operational edition will answer with Foundry evidence in Q1 2027. It decides nothing.
S.2Key messages
Six readings that frame the Republic of Korea baseline, and the eight questions this edition answers, each with its status and source.
Inventory totals after 2022 are not bound. The 2035 target is 53% to 61% below 2018.79
Where do emissions stand?Reported
Climate Action Tracker projects 11% to 19% below 2018 by 2030 under current policies.6
Is Korea on course for its 2030 target?Reported
Fossil fuels supplied 60% of generation in 2025; low-carbon sources 40%.5
How secure is electricity?Reported
Korea expects to import 16.7 million tonnes of cereals in 2026/27.8
How secure is food?Reported
Births rose in 2025 but fertility is lowest in Seoul at 0.63; the ageing share is not bound.12045
Is demographic change a health risk?Reported
Water and protected-area series are not bound at evidence close.1819
What about water and nature?Not bound
The IMF projects 2.6% growth in 2026.4
What does the economy look like?Reported
A heat and heavy-rain sequence over the capital region loading power, water, transport and care. SCN-KOR-HRT-01
What will Q1 2027 test first?Expert input
S.3Headline finding
ReportedEQL 4NRF-COUNTRY-KOR-2026-BASELINE-CLI-001
Korea submitted a 2035 target of 53% to 61% below 2018 including land use, equal to 304 to 364 Mt CO₂e, in December 2025.
| Item | Bar, scaled to the largest value | Value |
|---|---|---|
| Lower end | 53 | |
| Upper end | 61 |
Source: Climate Action Tracker 2035 target page7.
The range is large against the 2030 projection of 11% to 19% below 2018 for current policies6. The gap is where power, industry and transport plans must carry the load, which makes the electricity mix5 the first system to watch.
S.4At a glance
S.5What each steward reads in it
GCRI · KEY T
Technical Truth
The evidence supports a coupled reading of Korea’s risk: a demanding climate target, an electricity mix still 60% fossil, heavy reliance on imported cereals and a low, uneven fertility rate.
GRF · KEY M
Public Meaning
For most people risk arrives as a heat wave, a typhoon warning or a price change.
GRA · KEY F
Capital Meaning
Readiness implications only. The protection gap and public-asset cover are not bound, and the target range asks for large investment in the power system.
NEXUS
Synthesis
Korea’s demographic and electricity series are readable now; water, heat, wildfire and nature series are not.
S.6What this edition is, and is not
What this edition is
A baseline: the state of Republic of Korea’s water, energy, food, health and biodiversity systems in 2026, the dependencies that connect them, the risks that travel through them and the capabilities that hold them. It sets out the questions the operational series will answer.
What it is not
Not a national risk assessment, an official warning or a rating. It decides nothing about any institution or asset. Competent authorities keep every mandate they hold, and national ownership of the series is unaffected.
What comes next
Q1 2027 opens the operational series with a sealed Foundry evidence cut. Each later edition reports what changed against this baseline, new observations, source revisions, method changes, scenario updates and corrections.
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
- 2World Bank (ed.), World Development Indicators: Korea, Rep. (population and GDP). World Bank, Washington DC. Observation year 2025. Accessed 3 November 2026. https://data.worldbank.org/country/korea-repback
- 1Statistics Korea (KOSTAT) (ed.), “Birth Statistics in 2025.” KOSTAT, Daejeon, 26 August 2026. Observation year 2025. Accessed 3 November 2026. https://mods.go.kr/board.es?mid=a20108010000&bid=11773&act=view&list_no=447264back
- 7Climate Action Tracker (ed.), “South Korea: 2035 NDC.” Climate Analytics and NewClimate Institute, December 2025. Observation year 2025. Accessed 3 November 2026. https://climateactiontracker.org/countries/south-korea/2035-ndc/back
- 6Climate Action Tracker (ed.), “South Korea” country assessment. Climate Analytics and NewClimate Institute, updated 29 December 2025. Observation year 2025. Accessed 3 November 2026. https://climateactiontracker.org/countries/south-korea/back
- 5Ember (ed.), “South Korea” country page, electricity shares. Ember, London. Observation year 2025. Accessed 3 November 2026. https://ember-energy.org/countries-and-regions/south-korea/back
- 8Food and Agriculture Organization (ed.), GIEWS Country Brief: Republic of Korea, reference date 2 September 2026. FAO, Rome. Observation year 2026. Accessed 3 November 2026. https://www.fao.org/giews/countrybrief/country.jsp?code=KORback
- 9Greenhouse Gas Inventory and Research Center of Korea (ed.), National GHG Inventory (1990–2022 listed). GIR, Sejong. Observation year 2022 (page lists; figures not read). Accessed 3 November 2026. https://www.gir.go.kr/eng/index.doback
- 20Statistics Korea (KOSTAT) (ed.), Population Projections. KOSTAT, Daejeon. Source for a designed gap; not retrieved at evidence close. Observation year none bound.back
- 45Statistics Korea (KOSTAT) (ed.), Vital Statistics monthly releases (July 2026 release dated 23 September 2026; listing read, figures not read). KOSTAT, Daejeon. Observation year 2026. Accessed 3 November 2026. https://mods.go.kr/menu.es?mid=a20108000000back
- 18Ministry of Environment (ed.), Waterworks statistics. MoE, Sejong. Source for a designed gap; not retrieved at evidence close. Observation year none bound.back
- 19Convention on Biological Diversity (ed.), National Biodiversity Strategy and Action Plan profile: Republic of Korea. CBD Secretariat, Montreal. Source for a designed gap; not retrieved at evidence close. Observation year none bound.back
- 4International Monetary Fund (ed.), Republic of Korea country page: 2025 Article IV report and July 2026 World Economic Outlook Update projections. IMF, Washington DC. Observation year 2025 and 2026 projection. Accessed 3 November 2026. https://www.imf.org/en/Countries/KORback
- 3World Bank (ed.), “The World Bank in Korea: overview” (GNI per capita). World Bank, Washington DC. Observation year 2024. Accessed 3 November 2026. https://www.worldbank.org/en/country/korea/overviewback
