CCRA4-IA Technical Report
Informing the Fourth Climate Change Risk Assessment - Independent Assessment (CCRA4-IA).
The Climate Change Committee (CCC) published the CCRA4-Independent Assessment in May 2026, consisting of a Met Office-led Technical Report and a CCC-led Well-Adapted UK report. The CCRA4-IA combines up-to-date evidence on the risks of climate change with advice on the actions UK governments can take to improve climate resilience.
The purpose of the Technical Report is to provide an independent assessment of the risks and opportunities that climate change poses to the UK. It is designed, alongside the Well-Adapted UK report, to inform the upcoming CCRA4 and future National Adaptation Programmes, providing the analytical backbone that supports advice from the CCC to government and other decision‑makers.
A consortium of experts
The Technical Report brought together expertise from across academia, the public sector, the private sector and the third sector, with lead authors from academic partners including the University of Birmingham, University of Leeds, University of Bristol, University of Exeter, University College London, University of Reading, the Centre for Ecology & Hydrology, and Plymouth Marine Laboratory, among many others. The partnership model ensured that each chapter was developed by subject‑matter experts with deep domain knowledge, while benefiting from cross‑cutting input through science assurance, independent review, and ‘fresh eyes’ review groups.