Resource Management: Food, Water & Energy in the UK
Why Resources Matter
Food, water and energy are the three resources every country needs to keep working. Without enough of any one of them, businesses close, hospitals struggle and people go hungry. Geographers call the way societies plan, share and protect these essentials resource management. The UK has plentiful supplies of fresh water and a developed economy that can buy what it does not grow, but its supply systems are changing fast as imports rise, water demand shifts and the energy mix moves away from fossil fuels.
The UK now imports nearly half its food, transfers water from the wet north and west to the dry south-east, and has shifted its electricity generation from around 67% coal in 1990 to over 40% renewables today.
Food in the UK
In 1984 the UK produced around 78% of the food it consumed. Today that figure is closer to 60% — meaning over 40% is imported. Demand has changed: shoppers expect strawberries in December and avocados year-round. Add modern lifestyles that prefer ready meals, and the result is rising food miles — the distance food travels from farm to plate.
Year-round demand for ‘summer’ produce means UK supermarkets fly green beans from Kenya, mangetout from Peru and tomatoes from Spain. Each step adds to the carbon footprint, so movements such as ‘Buy British’, farmers’ markets and farm shops have grown in response. Many supermarkets now label produce with country-of-origin and carbon scores, and some chefs have built menus around seasonal British vegetables to push back against airfreighted imports.
Two further trends shape UK food supply:
- Agribusiness: the rise of large-scale, highly mechanised farms producing cereals and dairy efficiently — but with concerns over biodiversity loss, fertiliser run-off and animal welfare.
- Local sourcing: a movement toward shorter supply chains that supports rural economies and lowers food miles, though prices are usually higher.
Water in the UK
The UK has plenty of water overall — but it is not in the right places. Over half of UK rainfall falls on the north and west, while two-thirds of the population lives in the drier south and east. Areas of water deficit include London, the East Midlands and East Anglia, where less than 700 mm of rain falls a year. Areas of water surplus include western Scotland, the Lake District and Wales, with over 2,000 mm a year.
To match supply to demand, the UK relies on water transfer schemes. The Kielder Water reservoir in Northumberland (the largest in the UK) sends water south through the Tyne, while the Elan Valley in mid-Wales has supplied Birmingham since 1904. Demand keeps rising as population grows and people use more water at home (washing machines, dishwashers, gardens). Quality is also a challenge — agricultural run-off, sewage discharges and microplastics put pressure on water companies to clean water before it reaches taps and rivers.
Energy in the UK
The UK’s energy mix has changed dramatically. In 1990 coal generated around 67% of UK electricity; in 2024 less than 1%. The last coal-fired power station, Ratcliffe-on-Soar, closed in late 2024. Today the mix is roughly:
- Renewables (over 40%): wind (especially North Sea offshore farms like Hornsea), solar, hydro and biomass.
- Natural gas (around 30–35%): still the largest single source, used in ‘peaking’ power stations that fill gaps when wind drops.
- Nuclear (around 12–15%): from stations such as Sizewell B and Hinkley Point B (the last reactor closed in 2022); Hinkley Point C is under construction.
- Imports and other: via interconnectors with France, Norway and the Netherlands.
UK domestic supplies of coal, gas and oil are all in decline. North Sea oil and gas peaked around 1999 and now produces less than half its peak volume, leaving the UK increasingly reliant on imports and renewable generation.
Economic and Environmental Trade-offs
Every energy choice has both economic and environmental costs. Fossil-fuel extraction creates jobs and tax revenue but warms the climate; nuclear is low-carbon but produces radioactive waste and is expensive to build; wind farms are clean but face local opposition over views, bird strikes and turbine noise. Some areas with surviving North Sea oil and gas (Aberdeen) depend heavily on the industry for skilled jobs, while areas with new offshore wind (Hull, Grimsby) are emerging as a green industrial cluster. Resource policy is rarely just about engineering — it is also about employment, regional balance and climate commitments.
In 2019 the UK was the first major economy to commit by law to reach net-zero greenhouse-gas emissions by 2050. That target shapes resource policy across food (lower-carbon farming), water (energy used for treatment) and energy (rapid expansion of wind and solar). Interim targets include reaching net-zero electricity by around 2035. The pace of change here is faster than almost any other country — though the cost and the impact on workers in fossil-fuel industries remain contested.
Why This Matters
A high-income country can be food, water and energy insecure too. The UK’s rising food imports, growing water transfers and shifting energy mix all show how the modern resource challenge is no longer just about scarcity — it is about sustainability, climate change and security of supply. The next two lessons zoom out to the global picture and then close with one community renewable scheme that shows what sustainable energy can look like at small scale.