He cleaned a lagoon… with bubbles Meet Marino Morikawa, a Peruvian nanoscientist.When his father called to say the lagoon of his childhood—El Cascajo—had become a dump, Marino left his lab in Japan and flew home.Using ultra-fine nanobubbles (≈50–100 nm) made with hardware-store parts, he built a natural, chemical-free system that traps pollutants and bacteria:Inject nanobubbles into the waterAs they rise slowly, their ionic charge attracts contaminantsBiofilters with native microorganisms trap and break them down—no chemicals, no disruption to the ecosystemResults:✔️ In 13 months, the water was drinkable again✔️ In 3 years, migratory birds returnedToday, Marino’s mission:💧 Ultra-effective, low-cost decontamination with zero chemicals🌍 Active projects at Lake Titicaca and desert oases affected by wastewater from 1.5M+ people🌱 100 ecosystems restored by 2030, in partnership with local communitiesThis is deep climate tech in action: simple physics, local biology, real impact.Would you deploy this in your city? Credit Ecomedy for the storySupport the show

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