8 months ago

Desalination Is Expanding as Drought Pushes Nations Toward the Sea

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Nicholas Vincent is a passionate environmentalist and freelance writer. He is deeply committed to promoting... Read More

Water tanks and reverse osmosis equipment in a desalination plant.

In Morocco’s Souss-Massa region, tomatoes are thriving where rain has all but vanished, thanks to water pulled from the Atlantic and stripped of salt at a massive desalination plant. According to The Washington Post, the country is betting big on seawater filtration as drought stretches into its seventh year, threatening farms, cities, and livelihoods.

For decades, desalination was mostly confined to wealthy Persian Gulf nations. Now, as Climate change worsens global water stress, it’s spreading to new regions. Morocco plans to host four of the world’s 10 largest plants by 2031. Elsewhere, countries like Algeria, Egypt, Iraq, and Jordan are moving forward with their own megaprojects.

The appeal is clear: desalination promises a steady supply of drinking water and irrigation, even when aquifers run dry. Morocco’s plant near Agadir already provides water to 1.6 million people while fueling the nation’s vegetable exports to Europe. For some farmers and exporters, it has been a lifeline.

But desalination has limits. The process discharges brine back into the ocean, threatening ecosystems, and it demands enormous energy. When powered by fossil fuels, desalination increases greenhouse gas emissions, raising concerns about long-term sustainability. Experts say that meeting Morocco’s agricultural water needs alone would require dozens of mega-plants, a scale that’s financially and technically unfeasible. Smaller farms, far from the pipelines, are already being left behind.

Agriculture accounts for about 85% of Morocco’s water use, much of it going to thirsty export crops like tomatoes and citrus. Critics argue that the nation’s Green Plan prioritized economic gain over ecological balance, leaving communities vulnerable when drought struck. As former climate envoy Hakima El Haite warned, without a reduction in large-scale farming, desalination risks becoming an expensive stopgap rather than a lasting fix.

Still, Morocco is pressing ahead, with new projects planned along its coast and efforts to power them with wind energy. For a planet running dry, desalination offers hope—but also a reminder that true resilience depends on rethinking how we grow food, use water, and adapt to a warming world.

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