In 2015, nations reached a landmark in global climate diplomacy with the adoption of the Paris Agreement—a legally binding pact that laid the foundation for coordinated climate action worldwide. Central to this framework are Nationally Determined Contributions, the national plans through which countries outline how they will cut emissions and adapt to climate impacts.
Designed as a five-year cycle of rising ambition, NDCs are key to steering the world toward net-zero emissions by mid-century. In 2025, countries submitted their third-generation NDCs, marking a new phase in global climate efforts. By year-end, 128 parties—accounting for roughly 78% of global emissions—had submitted updated plans, including contributions from major economies and vulnerable nations alike.
A shift toward stronger climate action
The latest NDCs reflect a noticeable step up in both ambition and detail. According to the United Nations Development Programme, about 75% of countries have now set economy-wide emission reduction targets extending to 2035. More nations are also committing to stronger domestic action, rather than relying heavily on external support.
At the same time, adaptation is gaining prominence. With scientists warning that breaching the 1.5°C warming threshold is increasingly likely, nearly 90% of developing countries have strengthened their adaptation plans. Around 80% now explicitly address “loss and damage”—a growing concern, especially for vulnerable regions like small island states and least developed countries.
Beyond emissions, many countries are linking climate action to broader development goals—focusing on energy access, job creation, ecosystem protection, and resilient food and health systems. Notably, 96% of NDCs incorporate gender equality and social inclusion, while over 90% emphasize a “just transition” to protect workers and communities during the shift to low-carbon economies.
Turning ambition into implementation
A key focus of third-generation NDCs is credibility. Countries are strengthening transparency systems to track progress and attract investment. Nearly 88% of developing nations are building national frameworks to monitor climate targets, while 80% are signaling clearer pathways for climate finance.
Key sectors driving change
The updated NDCs highlight action across critical sectors:
- Energy: All countries include plans for renewable energy and efficiency, with many aiming to reduce fossil fuel dependence and phase down coal.
- Transport: 95% promote energy-efficient mobility, including electric vehicles and low-carbon fuels.
- Industry: Over 90% address industrial emissions, though progress varies in hard-to-abate sectors like steel and cement.
- Forests & land use: Nearly all NDCs recognize their importance, with strong roles for Indigenous communities in conservation.
- Agriculture & food: 78% include measures for resilience and emissions reduction, though food waste remains under-addressed.
- Health: 93% link climate action to health outcomes, with air quality a major focus.
- Water & oceans: Widely prioritized, especially for adaptation and resilience in coastal regions.
- Cities: With urban areas responsible for about 70% of emissions, over 80% of NDCs include city-level climate strategies.
Emerging areas like the circular economy, disaster risk reduction, and climate-linked security risks are also gaining traction.
Global support and the road ahead
Since 2015, the United Nations Development Programme has played a central role in helping countries design and implement their NDCs through its Climate Promise initiative. Under its latest phase, “Climate Promise 2025,” more than 100 countries received support in updating their plans.
Now, the focus is shifting from ambition to execution. A new initiative, Climate Promise: Forward, aims to accelerate implementation by coordinating global support and ensuring countries can meet their targets.
While third-generation NDCs mark real progress, significant gaps remain—especially in near-term action. The coming years will determine whether these commitments translate into meaningful change, or fall short of what’s needed to address the climate crisis.
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