17th September 2026
The New Water Revolution: How Countries Around the World Are Learning to Move, Store and Reuse Water
For most of human history, water management was fairly simple.
People settled beside rivers, dug wells, built dams and constructed canals to move water from one place to another.
Today that is changing.
Across the world, governments are investing billions in increasingly sophisticated water systems designed to do several jobs at once. Water is being moved hundreds of miles, recycled after it has been used, stored underground, diverted around cities, held back to prevent floods and delivered to farms with increasingly precise irrigation systems.
The reason is simple enough.
Climate change, population growth and economic development are changing where water is available and when it is available.
Sometimes there is too much.
Sometimes there is far too little.
And increasingly, countries are discovering that the two problems can occur in the same place in different seasons.
China has built one of the world's largest examples of moving water between regions. Egypt is trying to create new agricultural land in the desert. The Netherlands is deliberately giving rivers more room to flood. France is concentrating on reducing demand and reusing water. Spain is turning increasingly to desalination and recycled water.
Britain is beginning to join the same revolution.
Britain's canals may become water infrastructure again
Britain's canal network was originally built mainly for transport.
Today some of those canals could acquire a rather different role.
The Grand Union Canal Transfer is being developed to move water from the Midlands towards the South East. The proposed scheme could transfer up to 115 megalitres of water a day from Severn Trent's area to Affinity Water's supply areas.
It is a fascinating example because the canal itself becomes part of the water infrastructure.
The scheme is being developed jointly by Severn Trent, Affinity Water and the Canal & River Trust and is intended not simply to supply drinking water but also to help protect the environment and maintain water availability for canal navigation.
That is a very different concept from the canals of the Industrial Revolution.
Instead of thinking of a canal simply as a transport route, it can become part of a much larger regional water system.
And Britain now has a very good reason for looking at such ideas.
During the exceptionally dry summer of 2026, England experienced serious water shortages. By August, 71% of England was classified as being in drought, while reservoir storage had fallen substantially below the long-term average. Agriculture was affected by reduced crop yields and restrictions on abstraction.
The problem was particularly obvious in Lincolnshire.
July 2026 brought just 1mm of rainfall across Lincolnshire and Northamptonshire, equivalent to only 1% of the long-term average. Reservoir stocks were falling and farmers were facing increasing pressure on irrigation supplies.
Lincolnshire is now looking at on-farm reservoirs as part of a more resilient agricultural water system. The idea is simple: capture water when it is available rather than waiting until farmers desperately need it.
That may sound mundane compared with Toshka.
But it is exactly the same principle on a smaller scale.
Store water when you have it so that you have it when you need it.
China: moving water on an extraordinary scale
If Britain is beginning to rethink its canals, China has been doing so on a completely different scale.
China's South-to-North Water Diversion Project is one of the largest water engineering projects ever undertaken.
Northern China has a huge population and major cities but considerably less water than the south.
The answer has been to move water northwards.
By August 2026, the eastern and middle routes had transferred more than 90 billion cubic metres of water. The project was supplying 48 major cities and benefiting around 195 million people, according to China's Ministry of Water Resources and the China South-to-North Water Diversion Corporation. More than 13 billion cubic metres had also been used for ecological replenishment of rivers.
The middle route alone has supplied more than 80 billion cubic metres.
Water travels from the Danjiangkou Reservoir through a vast network towards Henan, Hebei, Beijing and Tianjin. Much of the middle route uses gravity rather than continuous pumping.
In Beijing, transferred water now accounts for nearly 80% of the city's urban water supply, according to the project operator.
But China is also doing something particularly interesting with its older waterways.
The ancient Beijing-Hangzhou Grand Canal, stretching for more than 1,700 kilometres, had sections which had effectively lost their connection with flowing water.
Since 2022, more than 800 million cubic metres of water has been diverted into the canal. More than 300 million cubic metres has also been used to irrigate more than 53,300 hectares of farmland along the canal and replenish groundwater.
The canal is therefore becoming part transport route, part environmental system and part agricultural water infrastructure.
That is a remarkable transformation.
The Netherlands has taken the opposite approach
The Dutch have faced a different problem.
They have too much water.
The Netherlands has spent centuries building dykes and trying to keep rivers under control. But the country has increasingly recognised that simply making the barriers higher cannot be the complete answer.
Its Room for the River programme deliberately gives rivers more space.
At around 30 locations, the Dutch authorities have moved dykes inland, lowered floodplains and constructed flood channels. When river levels rise, water can spread into designated areas rather than putting the entire pressure on the dykes.
This is an important change in philosophy.
Instead of saying:
"How do we stop the river flooding?"
the question becomes:
"Where can we safely allow the river to flood?"
The Noordwaard provides a striking example.
A former agricultural polder where farmers grew crops including sugar beet and potatoes was redesigned as a flood conveyance area. When water levels rise, excess water is deliberately allowed to flow into it. The area has subsequently developed into a tidal landscape with increased biodiversity.
The same piece of land therefore provides flood protection and environmental benefits.
France is concentrating on using less water
France provides another model.
Rather than simply building more infrastructure to find additional water, its Plan Eau concentrates heavily on using existing resources more efficiently.
The French government's programme has 53 measures covering water conservation, reducing losses, increasing the use of alternative water sources and improving storage, while also protecting water quality.
By March 2025, the government said all the measures had been initiated and 64% had been implemented. The programme included identifying 170 "black spots" where distribution network losses reached 50% and supporting hundreds of projects involving natural water management and reducing hard surfaces.
France is also putting substantial finance behind the programme.
In July 2026, the government and Banque des Territoires increased the planned envelope for its AquaPrêts water investment programme from €4 billion to €6 billion through 2028.
The important point is that France is treating saving water as infrastructure.
A litre that doesn't have to be extracted, treated, pumped or transported can be just as valuable as finding another litre of supply.
Spain is turning waste water into a resource
Spain faces some of Europe's most severe water shortages.
Its response increasingly includes desalination and water reuse.
Spanish regulations now provide a framework for using treated wastewater for 28 different uses across urban, agricultural, industrial and other sectors. The approach is based on assessing and managing the risks associated with recycled water.
This is particularly important for agriculture.
Rather than using high-quality freshwater for every purpose, treated wastewater can potentially be used for irrigation, leaving better-quality water available for drinking and other uses.
Spain is also investing in desalination.
In the Canary Islands, where conventional freshwater resources are particularly limited, agriculture depends partly on desalinated and treated water. The Spanish government proposed an €8 million subsidy scheme in 2026 to help farmers deal with the high cost of desalinated and extracted irrigation water.
Elsewhere in Spain, projects are combining desalination with renewable energy and water distribution infrastructure.
The result is a different sort of water system.
Instead of relying almost entirely on rainfall and rivers, a country can combine surface water, groundwater, recycled wastewater and desalinated seawater.
Egypt is trying to create water where there isn't any
And then there is Toshka.
Egypt has taken the most dramatic approach of all.
The country is attempting to move Nile water into the Sahara and use it to create hundreds of thousands of acres of agricultural land.
Egypt's Water Resources and Irrigation Ministry says 517,000 feddans have now been reclaimed and cultivated at Toshka, with a target of approximately 720,500 feddans. The system includes hundreds of kilometres of canals and numerous pumping stations.
It is an extraordinary engineering achievement.
But it also illustrates the fundamental problem with trying to manufacture agricultural land.
The water has to come from somewhere.
Egypt is already one of the world's most water-stressed countries and has a rapidly growing population. The economic question is therefore whether the additional food and employment generated by Toshka justify the water and infrastructure required to create it.
That debate is far from settled.
Morocco is trying a different agricultural route
Morocco provides another interesting example.
Instead of relying entirely on massive irrigation schemes, the country is investing in making agriculture more resilient to drought.
A World Bank programme approved additional financing in 2025 to help Moroccan farmers adopt conservation agriculture, climate-resilient seeds and improved soil and water management.
The programme is expected to reach around 1,200 farmers across 20,000 hectares.
This is important because it shows that the new water revolution isn't necessarily about moving more water.
Sometimes the answer is to make agriculture need less water in the first place.
One problem, many solutions
These projects look very different.
China moves water thousands of kilometres.
Egypt moves Nile water into the Sahara.
The Netherlands deliberately moves floodwater onto land.
France is concentrating on reducing consumption and losses.
Spain is recycling wastewater and desalinating seawater.
Morocco is changing agricultural practices.
Britain is considering using canals, reservoirs, water transfers and recycling.
But underneath all these projects is the same problem.
Water is becoming too valuable to manage in the old way.
For centuries we have tended to think of water as something that falls from the sky, runs down a river and eventually reaches the sea.
The new approach is much more complicated.
Water may be captured in a reservoir, transferred through a canal, pumped underground, recycled after domestic use, used for irrigation, allowed to recharge an aquifer and eventually returned to the natural environment.
A single litre of water may effectively have several lives.
There is a warning too
There is a danger in becoming too enthusiastic about giant water projects.
Moving water from one place to another does not create new water.
It simply changes its location.
Large dams, canals and transfers can have environmental consequences, consume large amounts of energy and create conflicts between regions or different groups of water users.
Even the most sophisticated system cannot escape the basic arithmetic.
If more water is taken from a river than nature can replace, eventually there will be a shortage.
That is why the most interesting development may not be the giant canal or reservoir.
It may be the combination of storage, recycling, efficiency, intelligent monitoring and carefully targeted transfers.
Britain is entering the same debate
The UK Government's latest National Framework for Water Resources recognises that England and Wales will need both new sources of supply and reductions in demand.
It specifically identifies water recycling, desalination and new reservoirs alongside reducing leakage and improving efficiency. The framework also points out that the energy sector itself will have increasing water requirements as electricity demand grows.
That last point is easily missed.
Water isn't just about drinking and farming.
It is connected to energy, industry, food, transport, housing and the environment.
A future power station may need water.
A data centre may need water for cooling.
A farmer may need water for irrigation.
A city needs water for its population.
And a river needs enough water left in it to support wildlife.
The challenge is therefore not simply finding more water. It is deciding how the same water can serve several purposes without exhausting the resource.
That may be the real water revolution now taking place around the world.
The great canals of the past were built to move goods.
The canals, reservoirs, pumping stations, treatment plants and flood channels of the future may be built to move something much more precious - water itself.