Climate Change
Risk Assessment 3
(CCRA3)

The third Climate Change Risk Assessment (CCRA3) assesses a set of 61 specific risks and opportunities to the UK from climate change, grouped into 5 categories.
 

For the purposes of the CCRA3, risk is defined as ‘the potential for consequences where something of value is at stake and where the outcome is uncertain’

8 Priority Risks

Natural Environment and Assets

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Infrastructure

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Health, Communities, Built Environment

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Business and Industry

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International Dimensions

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Natural Environment and Assets

N1

Risks to terrestrial species and habitats from changing climatic conditions and extreme events, including temperature change, water scarcity, wildfire, flooding, wind, and altered hydrology (including water scarcity, flooding and saline intrusion).

N2

Risks to terrestrial species and habitats from pests, pathogens and invasive species

N3

Opportunities from new species colonisations in terrestrial habitats

N4

Risk to soils from changing climatic conditions, including seasonal aridity and wetness.

N5

Risks and opportunities for natural carbon stores, carbon sequestration from changing

climatic conditions, including temperature change and water scarcity

N6

Risks to and opportunities for agricultural and forestry productivity from extreme events and changing climatic conditions (including temperature change, water scarcity, wildfire,

flooding, coastal erosion, wind and saline intrustion).

N7

Risks to agriculture from pests, pathogens and invasive species

N8

Risks to forestry from pests, pathogens and invasive species

N9

Opportunities for agricultural and forestry productivity from new/alternative species

becoming suitable.

N10

Risks to aquifers and agricultural land from sea level rise, saltwater intrusion

N11

Risks to freshwater species and habitats from changing climatic conditions and extreme

events, including higher water temperatures, flooding, water scarcity and phenological shifts.

N12

Risks to freshwater species and habitats from pests, pathogens and invasive species

N13

Opportunities to freshwater species and habitats from new species colonisations

N14

Risks to marine species, habitats and fisheries from changing climatic conditions, including

ocean acidification and higher water temperatures.

N15

Opportunities to marine species, habitats and fisheries from changing climatic conditions

N16

Risks to marine species and habitats from pests, pathogens and invasive species

N17

Risks and opportunities to coastal species and habitats due to coastal flooding, erosion and

climate factors.

N18

Risks and opportunities from climate change to landscape character

Sea Turtle
 
Sports Car in Storm

Infrastructure

I1

Risks to infrastructure networks (water, energy, transport, ICT) from cascading failures

I2

Risks to infrastructure services from river, surface water and groundwater flooding

I3

Risks to infrastructure services from coastal flooding and erosion

I4

Risks to bridges and pipelines from flooding and erosion

I5

Risks to transport networks from slope and embankment failure

I6

Risks to hydroelectric generation from low or high river flows

I7

Risks to subterranean and surface infrastructure from subsidence

I8

Risks to public water supplies from reduced water availability

I9

Risks to energy generation from reduced water availability

I10

Risks to energy from high and low temperatures, high winds, lightning

I11

Risks to offshore infrastructure from storms and high waves

I12

Risks to transport from high and low temperatures, high winds, lightning

I13

Risks to digital from high and low temperatures, high winds, lightning

 

Health, Communities and the Built Environment

H1

Risks to health and wellbeing from high temperatures

H2

Opportunities for health and wellbeing from higher temperatures

H3

Risks to people, communities and buildings from flooding

H4

Risks to the viability of coastal communities from sea level rise

H5

Risks to building fabric

H6

Risks and opportunities from summer and winter household energy demand

H7

Risks to health and wellbeing from changes in air quality

H8

Risks to health from vector-borne disease

H9

Risks to food safety and food security

H10

Risks to water quality and household water supplies

H11

Risks to cultural heritage

H12

Risks to health and social care delivery

H13

Risks to education and prison services

Reading To Your Dog
 
Glass Buildings

Business and Industry

B1

Risks to businesses from flooding

B2

Risks to businesses and infrastructure from coastal change from erosion, flooding and extreme weather events

B3

Risks to business from water scarcity

B4

Risks to finance, investment and insurance including access to capital for businesses

B5

Risks to business from reduced employee productivity due to infrastructure disruption and higher temperatures in working environments

B6

Risks to business from disruption to supply chains and distribution networks

B7

Opportunities for business from changes in demand for goods and services

 

International Dimensions

ID1

Risks to UK food availability, safety, and quality from climate change overseas

ID2

Opportunities for UK food availability and exports from climate impacts overseas

ID3

Risks and opportunities to the UK from climate-related international human mobility

ID4

Risks to the UK from international violent conflict resulting from climate change overseas

ID5

Risks to international law and governance from climate change that will impact the UK

ID6

Opportunities from climate change (including Arctic ice melt) on international trade routes

ID7

Risks associated with international trade routes

ID8

Risk to the UK finance sector from climate change overseas

ID9

Risk to UK public health from climate change overseas

ID10

Systemic risk arising from the amplification of named risks cascading across sectors and borders

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