Climate change affects everyone, but its impacts are far from equal. Across the
UK and globally, those living in poor quality housing face the harshest
consequences of our changing climate, creating a cruel irony where the people
who contributed least to global warming suffer most from its effects.
The Heat Island Effect: When Housing Location Becomes Life-Threatening
People on low incomes are more likely to live in housing not suited to heat and
are twice as likely to live in places that are significantly hotter than
neighbouring areas due to the 'urban heat island' effect. This phenomenon means
that while affluent neighbourhoods enjoy tree-lined streets and green spaces
that naturally cool the air, poorer communities endure concrete jungles that
trap and intensify heat. The statistics are stark: around a quarter of the
poorest families live in homes that regularly overheat, compared to just one in
twenty of the richest households. This isn't simply about comfort—it's about
survival. During heatwaves, these poorly ventilated, inadequately insulated
homes become furnaces, putting residents at risk of heat stroke, dehydration,
and other heat-related illnesses.
The Decade Ahead: Intensifying Extremes
The pace of change and clustering of record-breaking extreme weather are far
from natural, with a series of prolonged heatwaves hitting various parts of the
UK in summer 2025, including traditionally cooler regions like Wales, Northern
Ireland, and Scotland. These heatwaves aren't just more frequent—they're more
intense, longer-lasting. Climate projections for the next decade paint a
troubling picture. The UK can expect more frequent and severe extreme weather
events, from devastating floods to unprecedented heatwaves. London is already
affected by events such as floods, heatwaves and droughts, and as our climate
changes we expect to see an increase in the frequency and intensity of extreme
weather events.
Social Housing: Built for Yesterday's Climate
Most social housing was not built with climate change in mind, which means that
it will have to be adapted to suit our changing climate. These buildings often
lack proper insulation, adequate ventilation, or flood defences, leaving
residents exposed to temperature extremes and water damage. The vulnerability
extends beyond individual buildings to entire communities. Where communities
cannot afford to adopt measures or obtain adequate insurance, it is not possible
for them to adequately prepare without outside help. If that help is not
effectively provided then it is these communities which are highly likely to see
some of the most extreme impacts from future flood and heatwave events.
The Poverty Trap Deepens
Research from Anglia Ruskin University reveals that poorer households in the UK
are more vulnerable to climate change because temperature shocks are associated
with deepening wealth inequality. This creates a vicious cycle: climate impacts
make poor households poorer, which in turn makes them more vulnerable to future
climate impacts. The global picture is equally alarming. Climate change will
drive 68 million-135 million people to poverty by 2030, reversing the decades of
economic growth that helped lift millions from extreme poverty and reduced
inequalities.
Health Impacts: A Matter of Life and Death
The health consequences of poor housing during extreme weather are severe and
disproportionate. Age, pre-existing medical conditions and social deprivation
are key factors that make people vulnerable, while asthma is more common among
some ethnic minority communities and low-income households, and low-income
individuals who live in buildings that are older or in poor condition can be
exposed to damp indoor environments.
The Path Forward
Climate impacts and extreme weather events can affect anyone, but some people
will be more affected than others, depending not just on their exposure to the
event, but on their social vulnerability – that is, how well they are able to
cope with and respond to events like floods and heatwaves. The solution requires
urgent action to improve housing quality for the most vulnerable, retrofit
social housing for climate resilience, and ensure that adaptation measures reach
those who need them most. Without intervention, the next decade will see climate
change become an increasingly powerful driver of inequality, with housing
quality determining who survives and who suffers.
Housing Improvements and Retrofitting
• Retrofit existing homes to make them resistant and resilient to disasters -
retrofitting existing homes is more affordable, better for the environment, and
better for homeowners
• Improve insulation and energy efficiency - support
social housing providers to insulate social homes, improve energy efficiency and
upgrade heating systems
• Install overheating prevention measures - external
cladding with light colouring to reflect heat, extraction fans, blinds in the
windows on S and W aspects
• Enhance flood resilience - reline existing drainage
systems and improved drainage and flood resilience
• Implement water
conservation measures - replacement low volume toilets and baths, replacement
low flo taps, new low flow showers, water meters
Environmental and Infrastructure Solutions
• Develop green infrastructure - projects that have reduced surface water
run-off and local flooding, improved water quality, helped mitigate the urban
heat island effect and created wildlife habitats and improved biodiversity
•
Create accessible outdoor spaces - ensuring tenants with limited mobility could
access the outdoors without fear of slipping in puddles. Open spaces that had
previously been fenced off were brought back into use
• Build climate adaptation
into all new infrastructure - 75% of the infrastructure needed by 2050 has not
been built yet: an unmissable opportunity to address climate adaptation and
mitigation
Policy and Financial Support
• Provide targeted financial assistance - support for vulnerable communities who
cannot afford adaptation measures on their own
• Implement government adaptation
programmes - under the Climate Change Act 2008, the UK is legally required to
adapt to climate change. The government is required to produce a climate change
risk assessment to identify risks and a five-yearly national adaptation
programme
• Ensure affordable access to climate-resilient housing - address
barriers that prevent vulnerable populations from accessing safe, adapted
housing
• Support social housing providers - provide funding and technical
support to retrofit and adapt social housing stock
Health and Community Support
• Address fuel poverty - the effects of fuel poverty can be dangerous, or even
deadly — campaign group National Energy Action has linked cold homes to
thousands of deaths a year
• Provide healthcare support for climate-related
health impacts, particularly for elderly and vulnerable populations
• Ensure
equitable access to cooling centres, flood shelters, and other emergency climate
services
Long-term Systemic Changes
• Address housing inequality - tackle the root causes that leave vulnerable
populations in poor quality housing
• Integrate climate adaptation with social
policy - ensure climate adaptation measures address existing inequalities rather
than reinforcing them
• Build climate resilience into urban planning - create
cities and communities that protect vulnerable populations from climate impacts
• Develop early warning systems - provide vulnerable communities with advance
notice of extreme weather events.
These measures require coordinated action
across government, housing providers, communities, and international
organizations to ensure that those most vulnerable to climate change receive the
protection and support they need.
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