Editing IPCC:AR6/WGII/TS (section)

=== TS.AII.1 Key Risks and Representative Key Risks ===

<div id="h2-4-siblings" class="h2-siblings"></div>

'''Regional and sectoral chapters of this report identified 127 key risks that could become severe under particular conditions of climate hazards, exposure and vulnerability (Table SMTS.4).''' These key risks are assessed to be potentially severe, that is, relevant to the interpretation of dangerous anthropogenic interference (DAI) with the climate system, along levels for warming, exposure/vulnerability and adaptation. Severity has been assessed looking at the magnitude of adverse consequences, the likelihood of adverse consequences, the temporal characteristics of the risk and the ability to respond to the risks. Key risks cover scales from the local to the global, are especially prominent in particular regions or systems and are particularly large for vulnerable sub-groups, especially low-income populations, and already at-risk ecosystems ( ''high confidence'' ). { 16.5, Table SM16.4 }

'''These key risks can be represented in eight RKR clusters of key risks relating to low-lying coastal systems; terrestrial and ocean ecosystems; critical physical infrastructure, networks and services; living standards; human health; food security; water security; and peace and mobility (''' '''''high confidence''''' ''') (Table TS.AII.1).''' The assessment of these RKRs, which is presented in detail in Chapter 16, has also been used to organise the synthetic assessment of adaptation options in [[IPCC:Wg2:Chapter:Chapter-17|Chapter 17]] and is integrated across various sections in the TS and SPM. { 16.5, SM16.2.1, 17.2.1, 17.5.1 }

'''Table TS.AII.1 |''' Climate-related representative key risks (RKRs). { 16.5, Table 16.6 }

{| class="wikitable"
|-
! Code

! RKR

! Scope

! Sub-section assessment of RKR

|-
| RKR-A

| Risk to low-lying coastal socioecological systems

| Risks to ecosystem services, people, livelihoods and key infrastructure in low-lying coastal areas and associated with a wide range of hazards, including sea level change, ocean warming and acidification, weather extremes (storms, cyclones) and sea ice loss, for example

| 16.5.2.3.1

|-
| RKR-B

| Risk to terrestrial and ocean ecosystems

| Transformation of terrestrial and ocean/coastal ecosystems, including change in structure and/or functioning and/or loss of biodiversity

| 16.5.2.3.2

|-
| RKR-C

| Risks associated with critical physical infrastructure, networks and services

| Systemic risks due to extreme events leading to the breakdown of physical infrastructure and networks providing critical goods and services

| 16.5.2.3.3

|-
| RKR-D

| Risk to living standards

| Economic impacts across scales, including impacts on GDP, poverty and livelihoods, as well as the exacerbating effects of impacts on socioeconomic inequality between and within countries

| 16.5.2.3.4

|-
| RKR-E

| Risk to human health

| Human mortality and morbidity, including heat-related impacts and vector-borne and water-borne diseases

| 16.5.2.3.5

|-
| RKR-F

| Risk to food security

| Food insecurity and the breakdown of food systems due to climate change effects on land or ocean resources

| 16.5.2.3.6

|-
| RKR-G

| Risk to water security

| Risk from water-related hazards (floods and droughts) and water quality deterioration; focus on water scarcity, water-related disasters and risk to Indigenous and traditional cultures and ways of life

| 16.5.2.3.7

|-
| RKR-H

| Risks to peace and to human mobility

| Risks to peace within and among societies from armed conflict as well as risks to low-agency human mobility within and across state borders, including the potential for involuntarily immobile populations

| 16.5.2.3.8

|}

<div id="TS.AII.2" class="h2-container"></div>

<span id="ts.aii.2-assessment-of-severity-conditions-for-representative-key-risks"></span>