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some of the stuff that journos get to get away with under the garb of their journalistic credentials but its a necessary evil of a democracy
Toggle Commented Sep 13, 2013 on IPCC crisis meeting at Arctic Sea Ice
An important characteristic of the Earth's atmosphere is its pressure as it often determines wind and weather patterns across the globe. By definition, atmospheric or air pressure is the force per unit of area exerted on the Earth’s surface by the weight of the air above the surface. The force exerted by an air mass is created by the molecules that make it up and their size, motion, and number present in the air. These are important factors because they determine the temperature and density of the air and thus its pressure. Air pressure is not uniform across the Earth however. The normal range of the Earth's air pressure is from 980 millibars (mb) to 1050 mb. These differences are the result of low and high air pressure systems which are caused by unequal heating across the Earth's surface and the pressure gradient force.
Toggle Commented Sep 13, 2013 on Pinpointing the minimum at Arctic Sea Ice
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Sep 13, 2013