This Nobel Prize–winning chemist dreams of making water from thin air

Yaghi envisions a two-pronged product line. Industrial-scale water generators that run on electricity would be capable of producing thousands of liters per day on one end, while units that run on passive systems could operate in remote locations without power, just harnessing energy from the sun and ambient temperatures. In theory, these units could someday replace desalination and even entire municipal water supplies. The next round of field tests is scheduled for early 2026, in the Mojave Desert—one of the hottest, driest places on Earth.

“That’s my dream,” Yaghi says. “To give people water independence, so they’re not reliant on another party for their lives.”

Both Yaghi and Watergen’s Chernyavsky say they’re looking at more decentralized versions that could operate outside municipal utility systems. Home appliances, similar to rooftop solar panels and batteries, could allow households to generate their own water off grid.

That could be tricky, though, without economies of scale to bring down prices. “You have to produce, you have to cool, you have to filter—all in one place,” Chernyavsky says. “So to make it small is very, very challenging.”

Difficult as that may be, Yaghi’s childhood gave him a particular appreciation for the freedom to go off grid, to liberate the basic necessity of water from the whims of systems that dictate when and how people can access it.

“That’s really my dream,” he says. “To give people independence, water independence, so that they’re not reliant on another party for their livelihood or lives.”

Toward the end of one of our conversations, I asked Yaghi what he would tell the younger version of himself if he could. “Jordan is one of the worst countries in terms of the impact of water stress,” he said. “I would say, ‘Continue to be diligent and observant. It doesn’t really matter what you’re pursuing, as long as you’re passionate.’”

I pressed him for something more specific: “What do you think he’d say when you described this technology to him?”

Yaghi smiled: “I think young Omar would think you’re putting him on, that this is all fictitious and you’re trying to take something from him.” This reality, in other words, would be beyond young Omar’s wildest dreams.

Alexander C. Kaufman is a reporter who has covered energy, climate change, pollution, business, and geopolitics for more than a decade.