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  • How farmers in Earth's least developed country grew 200 million trees

    After years of drought and land-clearing that left Niger with few trees left, the country now boasts about 200 million trees, which have mostly been reestablished naturally. While the effects of climate change could threaten the future of these trees, this method has also increased crop yields in villages. This model of letting trees grow back with little human influence could be implemented in other countries.

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  • Why a dry Chilean lagoon matters to the future of the Great Salt Lake

    Burdened by extreme drought, water diversions, and a lack of regulation, Lake Acuelo in Chile dried up. Now, researchers are learning from this slow-moving ecological disaster to help other lakes in trouble, like Utah’s Great Salt Lake.

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  • Indigenous knowledge and science team up to triple a caribou herd

    A collaboration between two First Nations communities, scientists, private businesses, and the Canadian government are recovering caribou populations in British Columbia. Because of their work, they have been able to triple the number of caribou in their herd over the last decades. While their methods of protecting the animals are controversial, they’ve been able to protect more than 7,000 hectares of additional land for caribou habitat.

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  • Oregon Is Turning Sewage into an Endless Supply of Green Energy

    A wastewater treatment plant in Oregon not only cleans water that is released into the local river, but it also creates fertilizer that is sent to farmers to use on non-food crops and it produces renewable power from methane. The green energy created at the plant heats five buildings on the site and produces half of the energy the facility uses. This kind of co-generation system is growing in other places in the United States, China, Brazil, and Norway.

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  • The ‘timber detectives' on the front lines of illegal wood trade

    At the Thünen Institute in Germany, a team of 15 people are working to identify culprits of the world’s third largest criminal sector: the illegal wood trade. Since 2013, they have been analyzing and identifying the origin of wood products to determine if they were made from endangered or protected tree species. In 2021, they analyzed about 10,000 samples and are working with organizations and authorities around the world to prevent illegal logging.

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  • The Eco-Friendlier Future of the Disposable Spork

    A clean-tech startup in Germany is producing sustainable food packaging out of agricultural waste as an alternative solution to single-use plastic. Bio-Lutions claims its products are compostable and uses less water than other products, but the material used won’t work for some food items like hot beverages. The company already has investors such as Delivery Hero that will use its products when the factory is producing compostable packaging.

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  • Pueblos in New Mexico turn to goats for fire management

    Tribes in New Mexico have enlisted over 70 goats to help clear dry brush, branches, and invasive plants, which can otherwise become fuel for potential fires. The program, which has been running for almost a whole year has proven successful and it serves a dual purpose--the goats eat, and the chances of potential fires are greatly reduced. "Sandia Pueblo’s goat experiment has garnered interest from other tribes that see goats as a more natural way to tend the land than heavy machinery and chemicals."

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  • A shot of recycled water revives a flourishing ecosystem on the Santa Cruz River in Tucson

    By rewetting part of the Santa Cruz River in Tucson, the city has been able to revitalize an ecosystem that was once thought to be lost. Through collaboration and research, hundreds of species of creatures have returned to the river. This restoration project could serve as a model for other cities that want to help their desert rivers and sustain wildlife habitats.

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  • Many mangrove restorations fail. Is there a better way?

    Mangrove forests are known to be excellent storers of carbon and hosts of biodiversity, but they are also able to protect communities on coastlines from storm surge. However, many of the projects to restore these forests fail because they are rushed or planted in the wrong places. Scientists argue that organizers should focus on natural regrowth or “ecological mangrove restoration,” a science-based approach, which has been used in Indonesia and Guinea-Bissau.

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  • State employees work from home when threat of bad air quality looms

    Although work-from-home was mostly a reaction in response to the pandemic, in Salt Lake City, Utah, the strategy has developed the potential to improve air quality. Most state employees are now required to telework certain days in order to help curb bad air quality days, and are given at least a 48-hour notice. During the pandemic, having close to 9,000 state employees stay home reduced pollution by 40 tons over the course of April 2020 to May 2021.

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