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How Paris uses the Seine to cool thousands of buildings without AC | The Optimist Daily
Paris’s underground district cooling network uses the Seine to chill buildings across the city, with plans to expand to 3,000…
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Why art gallery visits may be one of the healthiest habits you can build | The Optimist Daily
New research shows that viewing original art in galleries can ease stress, reduce inflammation, and boost long-term wellbeing.
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From rubble to renewal: how recycling fire debris helps rebuild California—and the planet | The Optimist Daily
In the aftermath of California wildfires, steel, concrete, and even trees from are being recycled into new construction materials.
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Greece launches nanosatellite system to catch wildfires early | The Optimist Daily
Greece has deployed four nanosatellites that detect wildfires as small as four meters across, sending AI-powered alerts to firefighters in…
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How environmental DNA turned river water into a global wildlife census | The Optimist Daily
A liter of river water contains DNA from every species that touched it. NatureMetrics is using that to map life…
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How to build a midday wellness routine | The Optimist Daily
Beat the afternoon slump with these simple but effective habits.
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The bill that brings green hydrogen into California’s clean energy grid | The Optimist Daily
California signed SB 1350, qualifying green hydrogen as renewable energy and addressing the overnight fossil fuel gap.
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Kenya on track for universal electricity access by 2030, powered by clean energy and community reach | The Optimist Daily
Kenya is closing in on universal electricity access by 2030, with clean energy driving rural electrification and a strong national…
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EU greenlights 100 hydrogen projects in major energy transformation plan | The Optimist Daily
The EU approves 100 cross-border hydrogen and electrolyzer projects, accelerating clean energy infrastructure and unlocking funding across Europe.
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Op-ed: The Supreme Court Created a Tipping Point for Pesticides
The Supreme Court’s decision over Bayer and glyphosate empowers the movement to stop pesticide companies from causing harm.















