- Mexico 2026
- Chapter 2
Key findings
Twelve findings carry the baseline. They are grouped by system, never ranked. Each resolves to its source or, where Nexus analysis is involved, to its stated method.
Contents
- ·Edition home
- ·Executive summary
- 1Mexico’s risk runs through its borders, its basins and its coasts
- 2Key findings
- 3Systems and sectors at baseline
- 4Risks and capability
- 5Multi-year drought on a gas-reliant grid
- 6Readings from the other desks
- 7The 2027 agenda
- 8Systems in depth
- AMethodology
- BData appendix
- CReferences and record
- ·Complete edition, for print
2.1Headline finding
ReportedEQL 4NRF-COUNTRY-MEX-2026-BASELINE-WAT-004
The 2020–2025 Rio Grande cycle closed with 0.88 million acre-feet delivered against 1.75 owed. In February 2026 Mexico committed to annual deliveries of at least 0.35 million acre-feet and to a plan for the shortfall.
| Item | Bar, scaled to the largest value | Value |
|---|---|---|
| Owed over the cycle | 1.75 | |
| Delivered by late October 2025 | 0.88 |
Source: IBWC accounts as reported in CRS6. The treaty sets a floor of 0.35 million acre-feet a year, measured in five-year cycles20.
Implication
The shortfall links basin hydrology to trade and finance. A repeat would tie further to the USMCA joint review, which CRS notes some Members wish to connect to the treaty621. Reservoir storage and drought, not only policy, set what can be delivered.
What would move it
Annual deliveries against the 0.35 million acre-foot floor, the plan for the 2020–2025 shortfall and the next drought monitor reports would each move this finding.
2.2Energy
ReportedEQL 5NRF-COUNTRY-MEX-2026-BASELINE-ENE-001
In 2024 Mexico imported 5,010 PJ of refined energy products, and dry gas supplied 64.2% of electricity generation.4
ReportedEQL 4NRF-COUNTRY-MEX-2026-BASELINE-ENE-002
Clean sources supplied 26% of Mexico’s electricity in 2025, with solar and wind at 13%; the NDC targets 38.5% clean generation in 2030.35
2.3Climate forcing
ReportedEQL 5NRF-COUNTRY-MEX-2026-BASELINE-CLI-003
Mexico’s 2035 contribution sets net emissions of 364–404 MtCO₂e unconditionally and 332–363 conditionally; the 2030 limit is 644 MtCO₂e gross.319
ReportedEQL 4NRF-COUNTRY-MEX-2026-BASELINE-CLI-007
Hurricane Otis made landfall at Acapulco as a category 5 storm in October 2023; heavy rain in October 2025 left 72 dead and 48 missing in four states.717
2.4Water
ReportedEQL 4NRF-COUNTRY-MEX-2026-BASELINE-WAT-004
The 2020–2025 Rio Grande cycle closed with 0.88 million acre-feet delivered against 1.75 owed; Mexico committed in February 2026 to annual deliveries of at least 0.35.620
ReportedEQL 4NRF-COUNTRY-MEX-2026-BASELINE-WAT-005
Water stress affected 64% of the continental area in 2025, and 114 aquifers were overexploited in 2023.313
2.5SEI
ReportedEQL 4NRF-COUNTRY-MEX-2026-BASELINE-SEI-006
Parts of Mexico City sink by up to 50 cm a year, and a magnitude 7.1 earthquake on 19 September 2017 triggered emergency declarations in 112 municipalities of Puebla.91011
2.6Food
ReportedEQL 3NRF-COUNTRY-MEX-2026-BASELINE-FOO-008
A constitutional amendment of March 2025 bars planting genetically modified maize, and the United States suspended Mexican live-cattle imports from 11 May 2025 over screwworm.2223
2.7Health
ReportedEQL 5NRF-COUNTRY-MEX-2026-BASELINE-HLT-009
In 2024, 14.4% of the population lacked access to nutritious food and 34.2% lacked access to health services.2
2.8Biodiversity
ReportedEQL 3NRF-COUNTRY-MEX-2026-BASELINE-BIO-010
Of 232 federal protected areas, 94 had no management programme in 2026, and spending was 16.2 pesos per protected hectare.12
2.9Finance
ReportedEQL 4NRF-COUNTRY-MEX-2026-BASELINE-FIN-011
The government holds US$420 million of World Bank parametric catastrophe bonds for earthquake and Atlantic storms, maturing in April 2028.8
2.10Systemic
Expert inputEQL 2NRF-COUNTRY-MEX-2026-BASELINE-SYS-012
The leading compound pathway for 2027 testing is a multi-year drought that cuts irrigation and hydropower while heat lifts power demand on a gas-reliant grid. §9.3
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
- 6E. H. Humphreys, N. T. Carter and C. V. Stern, 1944 U.S.-Mexico Water Treaty: Issues in the 119th Congress. CRS Insight IF12976, Congressional Research Service, Washington DC, 6 March 2026. Observation year: 2025 (cycle end), 2026 (commitments).back
- 20United States and Mexico, Treaty on Utilization of Waters of the Colorado and Tijuana Rivers and of the Rio Grande. Washington DC, 3 February 1944. Observation year: 1944 (text in force).back
- 21Government of Canada, Government of Mexico and Government of the United States, Agreement between the United States of America, the United Mexican States and Canada (USMCA). In force 1 July 2020. Observation year: 2020 (text in force).back
- 4Banco de México (ed.), “La matriz energética de México,” Recuadro 5, Reporte de Estabilidad Financiera, June 2026, pp. 127–131, using SENER, Balance Nacional de Energía 2024. Banxico, Mexico City, 10 June 2026. Observation year: 2024.back
- 3Secretaría de Medio Ambiente y Recursos Naturales (ed.), Actualización de la Contribución Determinada a nivel Nacional 3.0 de México. Submission to the UNFCCC, Mexico City, November 2025. Observation year: 2025 (preliminary 2024 inventory shares).back
- 5Ember (ed.), Mexico: electricity country profile, 2025 data. Ember, London, page updated 20 May 2026. Observation year: 2025.back
- 19Climate Action Tracker (ed.), Mexico: 2035 NDC assessment. Climate Analytics and NewClimate Institute, update of 25 February 2026. Observation year: 2025–2026.back
- 7National Hurricane Center (ed.), Tropical Cyclone Report: Hurricane Otis (EP182023), 22–25 October 2023. NOAA, Miami, 2024. Observation year: 2023.back
- 17Por Esto (ed.), “Suman 72 muertos y 48 desaparecidos por lluvias en cinco estados,” reporting a federal government statement. Por Esto, Mérida, 17 October 2025. Observation year: 2025.back
- 13Expansión Política (ed.), “Acuíferos sobreexplotados en México y gestión del agua subterránea,” reporting Conagua data. Expansión, Mexico City, 25 January 2026. Observation year: 2023.back
- 9Servicio Sismológico Nacional (ed.), Reporte especial: Sismo del día 19 de septiembre de 2017, Puebla-Morelos (M 7.1). UNAM, Mexico City, 2017. Observation year: 2017.back
- 10Secretaría de Gobernación (ed.), Declaratorias de Emergencia Extraordinaria y de Desastre Natural por el sismo de magnitud 7.1 del 19 de septiembre de 2017. Diario Oficial de la Federación, Mexico City, 27–28 September 2017. Observation year: 2017.back
- 11E. Chaussard, E. Havazli, H. Fattahi, E. Cabral-Cano and D. Solano-Rojas, “Over a century of sinking in Mexico City: no hope for significant elevation and storage capacity recovery,” Journal of Geophysical Research: Solid Earth, vol. 126, no. 4, e2020JB020648, 2021. Observation year: 2021 (record from 1900).back
- 22Seed World (ed.), “Mexico approves constitutional ban on planting genetically modified corn.” Seed World, 24 March 2025. Observation year: 2025.back
- 23El Imparcial (ed.), “Cierra EEUU nuevamente frontera con México por gusano en el ganado.” El Imparcial, 11 May 2025. Observation year: 2025.back
- 2Instituto Nacional de Estadística y Geografía (ed.), Pobreza multidimensional 2024. Comunicado de prensa 118/25. INEGI, Aguascalientes, 13 August 2025. Observation year: 2024.back
- 12Expansión Política (ed.), “Presupuesto 2027 pone en riesgo las áreas naturales protegidas,” reporting an analysis by NOSSA of official data. Expansión, Mexico City, 22 September 2026. Observation year: 2026.back
- 8World Bank (ed.), “World Bank Issues $420 Million in Catastrophe Bonds for Renewed Disaster Risk Protection for Mexico.” Press release, Washington DC, 17 April 2024. Observation year: 2024.back
