The RKRs are intended to capture the widest variety of KRs to human or ecological systems with a small number of categories that are easier to communicate and provide a manageable structure for further assessment. They expand the scope of some AR5 KR clusters  and add new ones . The RKRs encompass a diversity of types of systems, including an example of a geographically defined system , ecosystem well-being and integrity , a cross-cutting issue relevant to several outcomes of concern  and several topics focused directly on aspects of human well-being and security . This set of RKRs manages but does not eliminate overlap, instead providing alternative perspectives on underlying key risks that sometimes include complementary views on common risks. For example, the water security RKR highlights the many key risks mediated by water quantity or quality, which are sometimes manifested as risk to food security  or health .
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report