Key risks  are defined as a subset of climate risks that can potentially become, or are already, severe . The selection process included a review of KRs already identified in AR5 Chapter 23  and a review of the large body of new evidence on projected risks presented in Sections 13.2- 13.9. Key risks are reinforced by evidence from the detection and attribution assessment  and new evidence from WGI AR6 Chapters 11 and 12 on regional climatic impact drivers and extremes . Several expert opinion workshops of lead and contributing authors led to further refinements, adjustment and consensus building around the characteristics of KRs, which ultimately guided the construction of the burning embers . There is high confidence that under low or medium adaptation, high to very high risks are projected at 3ºGWL . Most risks are assessed as moderate up to 1.5°GWL .
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report