Call for Applications: Early-Career Researchers Invited to Review the IPCC Seventh Assessment Report (AR7)

IPCC AR7 Expert Review 2026 | Call for Early-Career Researchers Worldwide. Register to become an expert reviewer for the IPCC Seventh Assessment Report (AR7). Contribute to global climate science by reviewing the First Order Draft of Working Group I. Registration closes 25 September 2026.

The Intergovernmental Panel on Climate Change (IPCC) has opened registration for experts to participate in the First Order Draft review of the Working Group I contribution to the Seventh Assessment Report (AR7). This unique opportunity allows researchers and subject-matter experts from around the world to contribute directly to one of the world’s most influential climate science assessments.

The expert review process is a vital part of ensuring that IPCC reports remain scientifically rigorous, balanced, transparent, and policy-relevant. Early-career researchers with expertise in climate science and related disciplines are encouraged to register and provide technical comments that will help strengthen the report before publication.

About the IPCC AR7 Expert Review

The IPCC’s Working Group I is responsible for assessing the physical science basis of climate change, including:

Observed climate change.
Climate processes and feedback mechanisms.
Projected future climate changes.
Regional climate information.
Large-scale climate system changes.

The First Order Draft review represents the first formal opportunity for independent experts worldwide to evaluate the report before it undergoes further revisions by authors and governments.

The review forms part of the IPCC’s transparent, multi-stage assessment process that helps ensure every report reflects the latest and most robust scientific evidence available.

Why Participate?

Expert reviewers play a critical role in maintaining the quality and credibility of IPCC assessments.

Participants will have the opportunity to:

Contribute to one of the world’s most authoritative climate science reports.
Review cutting-edge scientific assessments before publication.
Strengthen the scientific quality and accuracy of the report.
Provide technical recommendations to improve clarity and completeness.
Join a global network of climate experts and researchers.
Receive official acknowledgement in the published IPCC report.

Experts who submit comments during the First Order Draft review will also be invited to review the Second Order Draft.

Who Can Register?

The IPCC invites experts worldwide with relevant knowledge and expertise in climate science or related fields.

Researchers from universities, research institutes, government agencies, scientific organizations, and other relevant institutions are encouraged to participate.

The IPCC welcomes reviewers from all regions to ensure broad geographical representation and diverse scientific perspectives.

Responsibilities of Expert Reviewers

Registered reviewers are expected to assess the draft report by examining:

Scientific accuracy.
Balance of evidence.
Clarity of presentation.
Completeness of information.
Consistency of scientific conclusions.

Experts may also:

Suggest improvements to figures and tables.
Recommend additional peer-reviewed scientific literature.
Identify areas requiring clarification.
Propose revisions that enhance readability while preserving scientific integrity.

Review Timeline

The expert review period will run from:

10 August 2026 – 2 October 2026

During this period, registered experts will receive access to the First Order Draft and supporting review materials.

Registration Deadline

Interested experts must register no later than:

25 September 2026 (23:59 CEST)

About the IPCC Seventh Assessment Report (AR7)

The Seventh Assessment Report is part of the IPCC’s seventh assessment cycle, which began in 2023.

Working Group I is one of three scientific reports that will contribute to AR7:

Working Group I: The Physical Science Basis.
Working Group II: Impacts, Adaptation and Vulnerability.
Working Group III: Mitigation of Climate Change.

The completed AR7 Synthesis Report is expected to be released in late 2029.

Why This Opportunity Matters

IPCC reports serve as the global scientific foundation for climate policy and international negotiations. Governments, policymakers, researchers, and international organizations rely on these assessments to understand climate risks and develop evidence-based responses.

By participating as an expert reviewer, researchers contribute directly to improving the quality, transparency, and credibility of one of the most important scientific assessments on climate change.

The IPCC emphasizes that the strength of its reports depends on the diversity of expert contributions from across the world, making this an excellent opportunity for both established and early-career researchers to engage in an internationally recognized scientific review process.

Key Dates

Registration Opens: Now Open
Expert Review Period: 10 August – 2 October 2026
Registration Deadline: 25 September 2026 (23:59 CEST)

Interested experts should register before the deadline and prepare to contribute to the review of the latest global assessment of the physical science of climate change.

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