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  • Printing a place to live: In Central Texas, homes are being built with emerging 3D technology

    Two Texas-based companies are 3D printing homes in an effort to combat the housing crisis and produce fewer emissions than a typical home construction. The companies lay the foundation and rebar for support. Then, a machine with a robotic arm builds up the walls by printing layers of a cement-like material.

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  • The black market endangered this frog. Can the free market save it?

    Ivan Lozano Ortega went from running a wildlife rescue center to breeding and selling critically endangered poison dart frogs, legally. He’s trying to stop poachers from taking the few frogs remaining in the wild in Colombia by making the species readily available to collectors.

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  • From plastic pollution, eSwatini woman creates money and beauty

    Bantwana Craft is a social enterprise that collects plastic waste to be transformed into reusable items such as coin purses, backpacks, hats, and pencil cases. The business has diverted more than 10,000 kilograms of plastic waste since its founding six years ago.

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  • How to build a zero-waste economy

    Entrepreneurs are encouraging reuse models like return-from-home systems to transition towards a circular economy without single-use plastics. In this model, consumers pay a deposit to use takeout boxes, cups, and other containers. They get their deposit back when the containers are picked up from their home by a courier.

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  • Ex-female refugee conserving South Sudan's disappearing forest

    Vivian Kide learned to build fuel-efficient stoves in a Ugandan refugee camp to use less charcoal and prevent deforestation. When she returned home to South Sudan, she began building stoves for other women in her community and teaching them how to do so themselves.

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  • Goats grazing in your backyard? This climate solution is gaining ground in California

    Landscaping businesses in California are trading in the typical tools and chemicals for goat herds. The practice of bringing in goats to munch on unwanted vegetation, called targeted grazing, is cheaper and more environmentally friendly than traditional landscaping.

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  • Start-ups see sustainable future in seaweed farming

    Companies are beginning to grow offshore seaweed for human consumption as a protein option that’s better for the environment. Growing seaweed on ropes in the ocean is less land-intensive, sequesters carbon, and doesn’t require fertilizer or pesticides.

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  • One Man's Trash: Athens Junk Removal Service Gives Back to Community

    A junk removal service in Athens, Georgia, is slowing the growth of the local landfill by recycling, donating, and giving away the items it can before taking the rest to the landfill.

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  • Waste Management; Turning Plastic Waste into Wealth.

    A digital marketplace called Trash Coin is increasing the amount of waste that gets recycled in Nigeria. People can find the nearest drop-off location on the company’s mobile app to exchange recyclables for payment vouchers. Payment is based on the weight of the waste and can be transferred to bank accounts or used to pay for services like electricity.

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  • Waste worth watching: why Gree Energy wants your dirty water

    Gree Energy helps food processors in Indonesia overcome the financial barriers to installing anaerobic wastewater treatment plants. These plants turn methane emissions into biogas to be used as electricity or thermal energy. The company plans the builds, finds uses for the biogas, and establishes revenue to fund the projects.

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