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Apparatus enclosed in a case that is capable of sustaining  an explosion  that occur within itself and is also capable of preventing ignition of specified gases or vapors surrounding the enclosure by sparks,flashes,or explosion of the gases or vapors within.
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Saturday, April 26, 2008
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Wetlands are essential ecological features in any landscape. They are primary habitat for hundreds of species of waterfowl as well as many other birds, fish, mammals and insects. Wetlands naturally filter and recharge the water that later comes out of our faucets downstream. They act like giant sponges, slowing the flow of surface water and reducing the impact of flooding. Wetlands also prevent soil erosion, and they buffer water bodies from potentially damaging land use activities such as agriculture. And wetlands can remove and store greenhouse gases from the Earth's atmosphere, slowing the onset of global warming.
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Sunday, September 23, 2007
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Human activity is increasing the concentration of greenhouse gases in the atmosphere at a rate that has probably never been seen before in the planet's history. There is no serious scientific disagreement or debate on this point. Prior to the start of the Industrial Revolution, the levels of carbon dioxide in the atmosphere were about 280 parts per million by volume (ppmv). Current levels are about 370 ppmv. The concentration of carbon dioxide and other key greenhouse gases in our atmosphere today is higher than at any time in the past 650,000 years, and probably higher than in the past 20 million years.
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Sunday, September 23, 2007
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Eco jet is term used by Easyjet airline which aims at reducing emission of Green house gases by half.

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Sunday, August 26, 2007
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