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Environmental News Network -- Know Your Environment
A Purdue University study shows that honeybees collect the vast majority of their pollen from plants other than crops, even in areas dominated by corn and soybeans, and that pollen is consistently contaminated with a host of agricultural and urban pesticides throughout the growing season.
En los Estados Unidos, el uso de gas natural para la generación de electricidad sigue creciendo. ¿Los impulsores de este desarrollo?, el auge en la producción nacional de gas natural, los precios históricamente bajos y un mayor control sobre las emisiones de carbono de los combustibles fósiles. Aunque el carbón todavía representa alrededor de un tercio de la producción eléctrica de Estados Unidos, las empresas de servicios públicos están cambiando al uso de gas natural limpio para reemplazar las centrales de carbón fuera de servicio.
Although those who reside outside of San Francisco may not be aware of the fact, mid-April 2016 marked a huge milestone in the advancement of green technology in the city and its mandated usage in all newly-constructed buildings.
The new legislation, unanimously approved by the San Francisco Board of Supervisors on April 19, states that all new buildings with 10 stories or fewer, including all residential and commercial projects, must include a photovoltaic solar panel installation that encompasses 15 percent of the building’s total rooftop. Moreover, the area that is dedicated to the installation must be positioned in full sunlight and free of any shade or obstructions.
In the United States, the use of natural gas for electricity generation continues to grow. The driving forces behind this development? A boom in domestic natural gas production, historically low prices, and increased scrutiny over fossil fuels' carbon emissions.
At up to 20 feet long and weighing a ton and a half, with the strongest bite in the animal kingdom, Nile crocodiles can pretty much devour anything they want to — including humans.
As you can guess from their name, these carnivorous crocs are native to sub-Saharan Africa, where they subsist on small hippos, zebras and other animals they catch and, in some cases, swallow whole.
El impacto que los seres humanos han hecho sobre la Tierra, en términos de cómo se producen y consumen recursos, ha formado un "nuevo modelo” en el flujo de energía global del planeta, según investigadores de la Universidad de Leicester.
La investigación sugiere que la Tierra se caracteriza ahora por un modelo geológico sin precedentes de flujo de energía global que está importantemente influenciado por los seres humanos y que es necesario para el mantenimiento de la complejidad de las sociedades humanas modernas.
