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  • Seaweed Diet for Cows Lowers How Much Methane They Produce: Study

    Researchers at University of California, Davis found that cows that were fed a small amount of seaweed in their diet drastically reduced the amount of methane they emitted, which could be a low-cost climate solution for farmers. They saw an 82 percent reduction in methane in beef cows and there was also no detectable difference in the taste of the beef. More research is needed to be done to see how these results apply in other settings.

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  • The secret ingredient in Paris' green public housing

    Paris Habitat, the city’s main social housing agency, used hempcrete — a concrete-like mixture of hemp, lime, and water — as insulation in one of its apartment complexes. This material helps maintain temperature and reduces a building’s energy use and greenhouse gas emissions. The cost of using hempcrete can be expensive but making the material is more environmentally friendly, and has shown that it can be implemented for affordable housing and not just for those who already have the means to pay for it.

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  • The mechanical stomach powering homes by digesting old food scraps

    The electricity powering 3,000 Perth homes might have started out as moldy bread and rotting lettuce. The city of Cockburn collects food waste from supermarkets and restaurants to be fed into a mechanical "stomach" that converts the waste to energy. Methane is trapped and used to power electric generators. The remainder of the "digested" food is turned into compost and liquid fertilizer. The operation has recycled 43 tons so far, removing 81,000 kilograms of gases that otherwise would escape landfills and warm the atmosphere.

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  • ‘Our biggest challenge? Lack of imagination': the scientists turning the desert green

    A Dutch group of engineers known as the Weather Makers has an ambitious plan to regreen the Sinai Peninsula — the stretch of desert connecting Egypt to the rest of Asia. Their efforts would restore forests, wetlands, and even adjust the weather for the region. This form of ecosystems regeneration could help with food security and mitigate the effects of climate change. Their process of changing an entire ecosystem can be controversial, but initial tests have shown how this could work on a large scale.

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  • The human right that benefits nature

    A court in Costa Rica decided that a local municipality was illegally polluting a stream and this ruling set the stage for the country to ensure that a clean and healthy environment is a human right. They ingrained this right in their constitution joining about 110 other countries that have constitutionally recognized it. Although the law is not perfect, it has allowed courts to rule that killing endangered green sea turtles is unconstitutional, for example. Costa Rica’s success with this legal pathway could be used in other countries seeking to adopt the right to a healthy environment.

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  • Balancing climate, culture, and community: Fiji's relocation challenge

    After a river in Fiji continued to flood, an entire village relocated uphill 2 kilometers away. About two-thirds of the residents participated in this voluntary relocation, which proved effective when a strong cyclone hit the island. Government policies are making it easier for villages to relocate due to climate change; in fact, four have done so already. Balancing the people’s cultural connection to the land and the need to move can be tricky, but as people continue to be displaced, their responses could help inform other coastal communities around the world.

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  • The Era of the Wood Skyscraper Is Arriving Audio icon

    The Brock Commons Tallwood House in Canada was the tallest building made of wood when it opened in 2017. Now, thanks to government policies, scientific research, and hundreds of examples of proof-of-concept, more developers around the world are looking to construct buildings out of timber. Using timber is cheaper than cement, concrete, and steel and can actually store carbon emissions in its supports instead of releasing the greenhouse gas into the atmosphere.

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  • Preserve, revive, restore: Indian ponds spring back to life

    Through a government funding program, several communities are working on initiatives to improve their access to clean drinking water. In India, one community formed a citizen’s group, cleaned up a local pond, and restored its natural water flow. Another initiative involved more than 1,000 women from 21 villages to build rainwater harvesting structures. These projects are seen as models for water conservation efforts as climate change exacerbates the country’s ongoing water crisis.

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  • Should We Genetically Engineer Carbon-Hungry Trees?

    As a way to combat climate change, scientists are experimenting with genetically modified trees as a way to draw carbon dioxide out of the atmosphere to store in its leaves, roots, and trunk. The startup Living Carbon has genetically modified poplar and pine seeds in the ground and expect them to be ready by the end of the year. Some scientists are worried about how these trees can impact forest ecosystems, but they grow faster than normal trees, allowing them to study and assess the risks quicker.

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  • 'Solidarity, not charity': Mutual aid groups are filling gaps in Texas' crisis response

    Texas mutual aid groups raised hundreds of thousands of dollars to help people with food, housing, and other supplies after natural disasters, which are increasing due to climate change. Organizers go door-to-door and use social media to identify people in need of assistance, particularly people impacted by structural inequalities in low-income communities, communities of color, and people with insecure housing. Donors, most of whom also come from the community, help with cash or goods donations. Recipients aren’t means-tested and the neighbors-helping-neighbors model allows for quick and passionate action.

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