USA, 2012, on the heat in history

Less than three months left in this year and the United States, more and more it seems that will mark 2012-n as the hottest year in the history of the country.

January-September period was while 9 quarter with warm according to data released by the National Climatic data Center. Moreover, 6 of the eight scenarios drawn from the center consider 2102-ten as the most heat of any other year in records dating to the earliest, from 1895-s.

The only possibility that this does not happen, is that the remaining months to rank among the top 10 coldest in history. according to experts, the temperatures for 9 months of analyzing them, were about 16 degrees, which is above the average of the 20th century.

As the Earth continues to warm from increasing levels of carbon dioxide in our atmosphere, the planet is likely to face more years of warm rekordthyes. Four of the five warmest years since the beginning of record keeping, have been recorded in the last decade. Tops 2005 list, followed by the years 1998, 2003, 2006 and 2009. Every decade since the 70's has been nearly a third of rank hot than the predecessor. The reason scientists are natural drought, as well as global warming caused by man.