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  • Could maggots fed on Kenya's food waste replace wild-caught fish feed?

    Kenya-based Project Mila collects food waste from households and businesses in Mombasa and feeds it to black soldier fly larvae. Then, the larvae are harvested for livestock feed and their excrement is used to create a sustainable fertilizer.

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  • Can Seaweed Save American Shellfish?

    Researchers, conservationists, and shellfish farmers on both U.S. coasts are starting and studying seaweed farms as a way to soak up excess nutrients in acidic water to help shellfish survive and grow.

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  • California Is Showing How a Big State Can Power Itself Without Fossil Fuels

    The California-based startup Magrathea Metals is producing magnesium with renewable energy to make the process less expensive and material-intensive. The company aims to make the more environment-friendly metal competitive with steel and aluminum.

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  • Need a new outfit? Try the library.

    A pilot project at the Dover Public Library in New Hampshire provided locals with an alternative to fast fashion by hosting a clothing library. Like borrowing a book, people could check out up to five occasion-wear garments, which are the type of pieces you might only wear once, for two weeks at a time.

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  • Tidal kites: New technology harnessing ocean energy

    The renewable energy technology company Minesto developed tidal kites that generate electricity from ocean tides. The machines are attached to the seabed and pushed through the water in a figure 8 pattern. The movement spins a turbine that generates electricity.

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  • The High-Tech Tools That Can Bust Careless Oil and Gas Drillers

    To help reduce methane emissions, the Oil and Gas Climate Initiative invested in high-tech satellites that can detect equipment leaks that might otherwise be missed. The leaks identified and addressed thanks to the satellites accounted for the equivalent of one million tons of carbon dioxide.

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  • Philly home repair and climate resilience program gets big funding boost

    The Built to Last program, run by the Philadelphia Energy Authority, began as a pilot in 2021, but in the face of increased demand, the city recently granted $5 million in its budget to “future-proof” homes with electric heat pump HVAC systems, rooftop solar, electric appliances and other repairs that create more energy-efficient homes for low-income families. Since 2021, the program has repaired over 100 homes and has about 200 currently in progress.

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  • This city just made it illegal to advertise SUVs. Here's why.

    Edinburgh’s city council banned fossil fuel advertisements on city property in hopes of making people less likely to opt for things like gas cars and international flights while removing a space for fossil fuel companies to mold their public image.

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  • Keeping Cities Cool in a Warmer Future

    Researchers of the Cooling Singapore project are using huge amounts of data to build a detailed digital twin of the city that they can use to test how effective new methods of combatting extreme heat would be. It's a digital representation of Singapore that makes predictions based on data like traffic, weather, electricity demand, and where green spaces are.

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  • 'Precision ag' promised a farming revolution. It's coming, just slowly

    A St. Louis-based company, Impossible Sensing, is creating sensors that can be attached to the back of a planter to help farmers understand factors like nutrient level and soil health. It’s a form of precision agriculture, which essentially follows the notion that having more precise data leads to more efficient and sustainable farms.

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