By Zonash Aman Ullah (United Kingdom)

Britain has traditionally discussed climate change as something global: melting ice sheets, vulnerable island states, drought in Africa or rising seas in Asia. Yet the climate threat is no longer comfortably distant. It is increasingly visible within the United Kingdom itself—in heatwaves, drought, flooding, pressure on infrastructure, disrupted agriculture and changing weather patterns.

The latest evidence is difficult to dismiss. The Met Office reported that 2025 was the warmest year recorded in the UK series dating back to 1884, while the four most recent years all ranked among the five warmest. The decade from 2016 to 2025 was also significantly warmer than earlier reference periods. Then came July 2026: provisional Met Office figures indicated that England and Wales were on course for their driest July in 190 years, amid prolonged heat, exceptionally low rainfall and widespread drought conditions.

These are not simply environmental statistics. They raise questions about law, governance and state preparedness.

As a student of international law, what interests me particularly is the widening gap between climate commitments and climate resilience. Britain already possesses one of the world’s most developed statutory climate frameworks. The Climate Change Act 2008, amended in 2019, places the UK under a legally binding target to reduce its net greenhouse-gas emissions by 100 per cent relative to the 1990 baseline by 2050—the framework commonly described as net zero.

Yet reducing emissions and preparing society for climate impacts are related but distinct legal challenges.

Even if global mitigation efforts succeed, Britain must still confront hotter summers, heavier rainfall, flood risks, drought pressures, threats to food production and vulnerabilities in infrastructure. The Government’s own 2022 Climate Change Risk Assessment identified 61 climate risks and opportunities, including threats to human health, agriculture, ecosystems, supply chains and the power system.

The problem therefore is not that Britain has no climate policy. The harder question is whether existing frameworks are translating into sufficient protection on the ground.

The independent Climate Change Committee gave a troubling assessment in its 2025 report to Parliament. It concluded that UK preparations for climate change remained inadequate and found no adaptation outcome with evidence of “good” delivery. Of the 46 outcomes examined, progress across much of the system was described as limited, insufficient, stalled or moving in the wrong direction.

That finding should matter beyond environmental circles. Climate adaptation intersects directly with housing standards, public health, planning law, water management, transport, agriculture, emergency preparedness and infrastructure regulation.

Consider housing. A building designed for the British climate of several decades ago may not necessarily remain comfortable or safe during increasingly intense heat. Consider water: prolonged drought affects households, agriculture and ecosystems. Consider flooding: extreme rainfall can expose weaknesses in drainage, planning and insurance arrangements. Climate resilience therefore becomes a question of how legal obligations are distributed among central government, local authorities, regulators, developers and infrastructure operators.

The UK’s Third National Adaptation Programme, covering 2023 to 2028, already operates within the Climate Change Act framework. The debate, therefore, is increasingly about implementation, accountability and whether existing duties produce measurable resilience rather than simply further strategies and reports.

There is also an international-law dimension. Climate change demonstrates why the old distinction between domestic and international problems is increasingly difficult to maintain. Emissions cross borders. Supply-chain disruptions cross borders. Food insecurity, displacement and economic instability caused by climate events elsewhere can eventually affect Britain too. The UK’s climate security is consequently tied both to domestic resilience and international cooperation.

This is what makes the climate crisis a threat within. Not because Britain faces environmental collapse tomorrow, but because gradual climatic change can expose weaknesses already embedded in infrastructure, institutions and law.

The UK has helped demonstrate internationally that climate objectives can be placed into legislation. The next legal test is more complicated: whether statutory ambition can be translated into resilient cities, infrastructure, homes, public services and communities.

Climate change will ultimately test more than Britain’s environmental policy. It will test whether law can anticipate risk rather than merely respond after damage has occurred and whether institutions designed for yesterday’s climate can adapt quickly enough to the climate Britain is now beginning to experience.