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Policy brief assesses 2035 climate pledges from 104 parties

A policy brief from PBL examines Nationally Determined Contributions communicated for 2035 by 104 parties as of March 2026. The assessment considers how the pledges could affect global emissions and evaluates their ambition levels for G20 economies, according to the brief’s description.

Illustrative photo · Photo by Chris LeBoutillier · Pexels

By March 2026, 104 parties had communicated Nationally Determined Contributions, or NDCs, for 2035, according to a policy brief from PBL. The brief describes these submissions as mitigation ambitions.

The publication evaluates the potential impact of the 2035 NDCs on global emissions. The supplied description does not provide a quantified estimate of that impact or identify the individual parties that submitted the contributions.

PBL also assesses the ambition levels of the 2035 pledges for G20 economies. The available source information does not state the findings of that assessment, compare the economies, or describe how ambition was measured.

The brief was published on June 9, 2026. No further details about implementation, national policies, or follow-up steps are provided in the supplied record.

THE QUESTIONS THIS EVENT LEAVES BEHIND

What assumptions does the assessment use when estimating the emissions impact of the 2035 pledges?

How might differences in national capacity affect comparisons of ambition among G20 economies?

What happens if parties do not implement the measures implied by their submitted contributions?

Which policy choices would have the greatest effect on whether the pledges reduce global emissions?

How could the assessment change if additional parties communicate contributions after March 2026?

YOUR QUESTION

Does this story leave you with another question?

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Sources

PBL — The new NDCs for 2035

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