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In winter, Greenland is dark for months and this year the first, brief sunrise was expected on January 13. Instead, the sun rose at 12:56 PM on January 11. The precise reason for this remains unknown. There is no apparent astronomical cause, as the constellations, the moon and the sun appear to be in their usual positions in relation to earth. One possibility is that the horizon has changed due to accelerated ice melt in Greenland. Unlike lower latitudes, Greenland has experienced an unusually warm winter, and the ice pack to the north may have contracted so much that the sun is appearing earlier than usual.
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Despite the recent freezing winter weather, 2010 tied with 2005 as the warmest year since record keeping began in 1880. The temperature of the earth was over one degrees higher than the 20th-century average the same as it was in 2005. It was the 34th consecutive year of above average temperatures. The last year that the temperature was BELOW average was 35 years ago, in 1976. Nine of the Earth’s 10 warmest years on record have occurred since 2001, and all 12 of the warmest years have occurred since 1997.
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The military is one of our biggest users of fossil fuels and they want to reduce costs and make units in the field less vulnerable to attacks on supply lines necessary to transport petroleum-based fuels. To do this, they have invented solar cells that soldiers can roll up like a mat, transport, and unroll in a new location to start generating electricity on the spot. It’s a matter of life or death: A recent study using data from 2007 found that the US military loses one person–killed or wounded–for every 24 fuel envoys it runs in Afghanistan. Engineer Dennis Helder says, "The bottom line is, we want to save some lives.read more