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  • Air pollution: New attempts to tackle Cairo's black cloud

    For many years, the city of Cairo has been dealing with dense smog, known as the "black cloud," that covers the city. This air pollution was initially set off by farmers burning surplus crops, but now is the cause of 42% of the nation's air pollution, according to the Egyptian Environment Ministry. Now, the government is taking action to fight against the smog with new programs and fees, aided by the inventions created by members of the Cairo community.

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  • How China is Cleaning its Air

    Air pollution is a huge problem for China, but surprisingly, the Air Quality Index in several cities is improving because of a variety of experimental projects that are being rolled out and a number of clever pollution solutions from around the country.

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  • How Mormon Principles and Grassroots Ideals Saved Utah

    In Salt Lake City, a bipartisan coalition of public and private actors, including members of the business, industrial, religious, political, and civic communities voluntarily came together to pass an ambitious twenty year land use plan. The plan, which conserves water, promotes clean air, and imposes new taxes for new rail lines, was made possible by Envision Utah, a public-private partnership that capitalizes on many Utahns' cultural and religious heritage.

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  • San Diego Climate Plan Means Big Potential for Jobs

    The poorest are the ones living in the most unhealthy neighbourhoods where air particles are more detrimental. The Climate Action Plan is dedicated to using cleantech while also using this as an opportunity for job creation for city's poorest as a way to help them live above the poverty line.

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  • Green and Cool Roofs Provide Relief for Hot Cities, but Should be Sited Carefully

    Twenty-first century cities face the factors of climate change with intensity as urban heating threatens human and the earth’s health. The University of Notre Dame has conducted research on green and cool roofing projects in the city of Chicago. They have found that green and cool roofs help mitigate the heat in cities; however, these roofs should be installed with other strategies like ponds and trees.

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  • Reaping the Rewards of the SunShot Initiative

    Air and water pollutants have an adverse impact on the health and well-being of citizens. Protecting the air and water, by increasing the usage of solar energy, can have a tremendous impact on reversing the impact of pollution on health. The Sunshot Initiative, launched by the Department of Energy, has already begun seeing improvements.

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  • Inside the moss mystery: How the organisms helped reveal Portland's pollution

    Throughout the city of Portland, there is moss growing in urban trees. When scientists began studying its growth, they were able to not only detect a citywide air pollution problem, but also pinpoint the origin of it which allowed city officials to take steps towards mitigating the issue.

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  • A Tale of Two Leaks: Fixed in California, Ignored in Alabama

    Eight years after a mercaptan spill in Eight Mile, Alabama, its mostly black and working class residents still suffer from respiratory issues, rashes and headaches.

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  • A Billboard That Acts Like 1,200 Trees

    Lima has the worst air quality of any city in Latin America due to its mostly windless climate, growing economic developments and ongoing construction. A local engineering school, however, has set out to transform billboards throughout the region to act as air purifiers and water generators.

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  • Urban Farming

    A growing number of people in the famously crowded Tokyo metropolis are becoming ‘city farmers’, planting crops atop tall buildings or deep underground. In an age of detrimental climate change, urban cultivation and green roof agriculture will soon be necessary as food, water and energy resources become scarcer.

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