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Assessment Reports

At regular intervals, the IPCC presents comprehensive scientific assessments of the existing scientific, technical and socioeconomic literature on climate change. Relying on the broad and geographically-balanced participation of experts from all relevant fields of knowledge and a rigorous and transparent multi-stage review process, the IPCC aims to deliver authoritative and unbiased reports.

Sixth Assessment Report

The IPCC is currently in its Sixth Assessment cycle. The initial call for nomination of experts to scope the AR6 report was launched in October 2016. We currently anticipate that the WG III AR6 report will be finalized in 2021, and the AR6 Synthesis Report will be finalized in 2022.

Fifth Assessment Report

The Working Group III Fifth Assessment Report (AR5) is an update of knowledge on the scientific, technical and socio-economic aspects of climate change.

The WG III contribution to the IPCC Fifth Assessment Report, Mitigation of Climate Change, was completed in 2014.

Reports from earlier assessment cycles

To find out more about how to access reports from earlier assessment cycles please visit the main IPCC website.