Una investigación de la NASA ha revelado que la atmósfera de la Tierra contiene una inesperada cantidad de un compuesto destructor de ozono proveniente de una fuente desconocida, que hace décadas fue prohibido su uso en todo el mundo. El tetracloruro de carbono (CCl4), que alguna vez fue utilizado en aplicaciones tales como limpieza en seco y para apagar incendios, se reguló en 1987 bajo el Protocolo de Montreal junto con otros clorofluorocarbonos que destruyen la capa de ozono y...
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El Fracking está una vez más en problemas. Los científicos han encontrado que lo que se bombea en las rocas ricas en hidrocarburos, como parte de la técnica de fractura hidráulica de rocas (fracking, NT) para liberar el gas y el aceite atrapado en depósitos subterráneos, puede no ser completamente sano. El ingeniero ambiental William Stringfellow y sus colegas en el Laboratorio Nacional Lawrence Berkeley y la Universidad del Pacífico, dijeron a la reunión de la American Chemical Society en San Francisco, que...
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Severe drought affecting the western United States in recent years is not only influencing water restrictions for residence and creating problems for crops and wildlife, but it's changing the landscape by causing land to rise up in elevation.
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More and more people are living in our cities. They are great places to live, exciting, good jobs, great night life, but also sometimes congestion and unhealthy air quality. The latter problems are improving, however. Efforts to make cities livable without driving are paying off. Bike lanes, bike sharing, and efforts to reduce auto traffic and congestion are helping to improve the air quality in our cities. The U.S. Environmental Protection Agency (EPA) this week released its Second Integrated Urban Air Toxics Report to Congress - the final of two reports required under the Clean Air Act (CAA) to inform Congress of progress in reducing public health risks from urban air toxics. "This report gives everyone fighting for clean air a lot to be proud of because for more than 40 years we have been protecting Americans – preventing illness and improving our quality of life by cutting air pollution - all while the economy has more than tripled," said EPA Administrator Gina McCarthy. "But we know our work is not done yet. At the core of EPA's mission is the pursuit of environmental justice - striving for clean air, water and healthy land for every American; and we are committed to reducing remaining pollution, especially in low-income neighborhoods."
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Una forma de arte antiguo está empezando a resurgir en una manera que nadie creía posible: en naves espaciales. El Origami, o plegado de papel japonés, se está desarrollando actualmente para paneles solares en el Laboratorio de Propulsión de la NASA en el Instituto de Tecnología de California. Estos paneles solares tienen un sinfín de aplicaciones.
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Caesars Entertainment Plans to Widely Expand Vehicle Station Network Across the Country, Encouraging a Future of Green Transportation. Across the Country, Encouraging a Future of Green Transportation. Relax and recharge has a new meaning for visitors at Caesars Entertainment Corporation (NASDAQ: CZR) resorts. While guests enjoy their stay, they can now conveniently plug in and charge their electric vehicles thanks to new EV charging stations at 13 Caesars' resorts and casinos.
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