LAST UPDATED: NOV/2025. Mexico's Nationally Determined Contribution (NDC) was updated in November 2025, when the country officially submitted its NDC 3.0 to the United Nations Framework Convention on Climate Change (UNFCCC). NDC 3.0 sets as its central objective aligning the country with a pathway compatible with climate neutrality by 2050.

This new version marks an important qualitative shift in Mexico's climate strategy, replacing the predominant emphasis on targets relative to baseline scenarios with absolute net greenhouse gas emissions targets, while also reinforcing the integration of mitigation, adaptation and sustainable development.

The document also highlights the need for a cross-cutting approach to climate policy, structured around five pillars: an intersectional gender perspective; a human-rights-based approach; intergenerational equity; a just transition to a sustainable economy; and attention to and protection of priority populations.

NDC 3.0 sets, for the first time, absolute net greenhouse gas emissions targets, aligned with a long-term pathway aimed at achieving climate neutrality by 2050. Mexico commits to limiting its net emissions to a range between 364 and 404 MtCO₂e in 2035 unconditionally, i.e., without relying on additional international support. Should there be expanded access to climate finance, technology transfer and international cooperation, the country indicates it could lower this level to a range between 332 and 363 MtCO₂e in the same year—this being the conditional target. These targets represent a more structured reduction effort compared to previous contributions, which were based mainly on percentages relative to baseline scenarios.

The new NDC organizes its climate actions in an integrated manner, combining mitigation, adaptation and cross-cutting policies. At the sectoral level, the document highlights the transformation of the energy matrix through the expansion of renewable sources and increased energy efficiency, the modernization of transport systems with an emphasis on low-carbon solutions, emissions reductions in industry, the promotion of more sustainable and resilient agricultural practices, and strengthened land-use management, including the conservation and restoration of ecosystems. These actions are presented as essential for reducing emissions while also contributing to the country's sustainable development and energy security.

The Climate Action Tracker (CAT, 2026) assessment indicates that Mexico's NDC 3.0 still does not put the country on a pathway compatible with the Paris Agreement's 1.5°C limit, classifying it as "Highly Insufficient." This means that if all countries adopted targets with the same level of ambition, global warming could reach around 4°C over the course of the century.

Even so, the CAT notes that the new targets for 2035 represent an advance relative to the previous NDC, signaling increased climate ambition. However, for this potential to be realized, more robust policies and actions will need to be implemented. According to the analysis, the country's emissions are still projected to grow sharply through 2035, driven mainly by the energy sector. Thus, meeting the new targets will depend on adopting measures that allow Mexico to peak its emissions and achieve a rapid reduction in subsequent years. The CAT also notes that the country has great potential to expand renewable energy sources, which would help both reduce dependence on fossil fuels and strengthen energy security.

Mexico does not have a Long-Term Strategy (LTS) under the Paris Agreement.

However, in 2024, the country announced its commitment to achieving net-zero emissions by 2050, a target later reaffirmed in NDC 3.0. According to the Climate Action Tracker (CAT, 2025), Mexico was the last G20 economy to formally adopt this commitment.