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Published: Saturday 21 September, 2013

michael kors hamilton handbags michael kors hamilton handbags ´╗┐Federal scientists report that Earths greenhouse gases are continuing to rise

WASHINGTON AP The greenhouse gases widely blamed for raising the planets temperature are still building up in the atmosphere.

The National Oceanic and Atmospheric Administration michael kors hamilton handbags reported Monday there was a cont michael kors hamilton handbags inuing increase in carbon dioxide and nitrous oxide in the air last year, though methane leveled off.

Greenhouse gases, produced by industry, automobiles and other engines, tend to trap heat from the sun a michael kors hamilton handbags t the planets surface, reducing the amount of heat radiated back out into space.

The result has been a gradual increase of temperatures over recent decades, raising concerns that human activities will result in a damaging climate change.

Most of the increase is attributed to carbon dioxide, which the agency said accounts for 62% of radiative warming by greenhouse gases.

Carbon dioxide increased from an average of 376.8 parts per million in 2004 to 378.9 ppm in 2005. The preindustrial CO2 level is estimated to have been about 278 ppm. michael kors hamilton handbags