Gas From Landfill Will Power Cement Plant

The largest supplier of cement products in the U.S. and Canada, the Lafarge-Sugar Creek Cement Plant in Missouri, will use landfill gas to replace almost 20 percent of its traditionally coal-derived energy.

Landfill gas consists of almost 50 percent methane, a greenhouse gas that’s 23 times more potent than CO2, and is created when organic material in a municipal solid waste (MSW) landfill decomposes.

The methane capture project will reduce CO2 emissions by an estimated 33,000 tons annually, which is the equivalent of planting more than 8,000 acres of forest or removing emissions from more than 5,500 motor vehicles.

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World takes drastic steps to contain swine flu

From Egypt’s order that all 300,000 pigs in the country be slaughtered to travel bans and putting the kibosh on kissing, the world is taking drastic — and some say debatable — measures to combat swine flu.

World Health Organization raised its pandemic alert to the second-highest level, meaning it believes a global outbreak of the disease is imminent.

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Great Wall of China longer than believed

With the new discovered sections, the total length of the Great Wall is around 3,900 miles.

The Great Wall of China is even greater than once thought, after a two-year government mapping study uncovered new sections totalling about 180 miles, according to a report posted on the website of the country’s national mapping agency.Using infrared range finders and GPS devices, experts discovered portions of the wall concealed by hills, trenches and rivers that stretch from Hu Shan mountain in northern Liaoning province to Jiayu Pass in western Gansu province, the official China Daily reported .

The additional parts mean the Great Wall – construction of which began more than 2,000 years ago to prevent incursions into China by the Mongols and others – spans about 3,900 miles through the northern part of the country.

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Satellite eye on Earth

This Envisat image over the North Sea captures numerous aircraft condensation trails, or 'contrails', as well as parts of the Netherlands (upper right), Belgium (lower right) and England (lower left)

source:Guardian

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