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The Canary Islands - A Paradise on Life Support

February 17, 2026

Sixty years ago, Europe's first seawater desalination plant was built in the Canary Islands. This technology for producing fresh water was a blessing for the islands. Now, it could prove to be a curse for the ecosystem.

Aerial shot of an industrial port in the Canary Islands showing storage facilities, fuel tanks, cranes and turquoise coastal waters.
Image: Mediawan

This water treatment system is essential for life in the area - but is it compatible with the principles of sustainable development?

Image: Mediawan

Due to limited freshwater resources and rising demand, the first seawater desalination plant in Europe was built in the Canary Islands. It is often touted as a perfect solution. Today, the Canary Islands have the highest number of desalinations plants in the world, relative to the islands’ size and population. 

Image: Mediawan

The fresh water obtained in this way is indispensable for human life on the volcanic islands, but - since it appears to be available in abundance - it also encourages unbridled economic development, such as mass tourism and the intensive monoculture of bananas for export. 

Image: Arte France - Big Company Prod - 2024

Moreover, seawater desalination is anything but climate-neutral. The plants consume vast amounts of electricity from fossil fuels. The brine returned to the sea destroys marine life and contributes to ocean acidification. 

Image: Arte France - Big Company Prod - 2024

The film sheds light for the first time on this region's dependence on desalinated seawater. The documentary also explains how water desalination works, and the various impacts that need to be considered. 

Image: Mediawan

Aware of the urgent need to protect nature, their own health and the future of their children, the Canarian people are working together with scientists to find alternative solutions for sustainable water management. 

Image: Mediawan

Thanks to decades of experience, the Canary Islands are now leaders in the field of seawater desalination, and their technical expertise is in demand worldwide. In view of increasingly frequent droughts due to climate change, the extraction of drinking water using this technology is becoming a matter of survival for an increasing number of people.
 

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