Washington (ap) - the United States set up a ready-made chart with the Miami heat.
A cruel combination, a wide range of drought and mostly in winter last year a year in the United States to promote the average temperature of 55.32 degrees Fahrenheit, the government said Tuesday. This is a complete degree than warm enacted in 1998 old records.
Break temperature record a complete degree is unprecedented, scientists said. Normally, the record is broken a certain degree of one over ten or so.
"This is the chart, deco, arndt said:" climate monitoring, the head in north Carolina asheville, the national climate data center temperature records, calculation.
Last year, he said, is "a huge mark at the end of a couple of decades of climate warming.
To the whole world data center data will not come out, until next week, but through the 2012 years of the first 11 months, the world of the eighth record pace the warmest years.
Scientists say, the heat is global warming action and natural climate change. Drought hit almost two thirds of the country and la weather events to promote a higher temperature, with climate change for greenhouse gas emissions, Catherine huo said, in the United States Texas university of science and technology of climate science, director of the center. She said, temperatures happen faster than scientists predict.
"These records will not appear like this in a constant climate," said Kevin CuiBoSi, boulder, Colorado in the national center for atmospheric research, in Colorado climate analysis ", they spend billions of dollars.
Global warming is the burning of fossil fuels - coal, oil and natural gas - send heat-trapping gases, such as carbon dioxide into the air as the climate change, scientists say.
What happened, and the temperature in the United States is consistent with the long-term pattern of "big hot strength of the event to a new level," arndt said.
Last year, more than the whole of twenty century of average temperature of 3.2 degrees. July is the hottest month record. 19 countries set records in the 2012 annual hot, although Alaska's temperature than average level.
The temperature records back to 1895, on the basis of a year on average across the United States and a state of more than 1200 weather station report.
Many environmental groups, including the world wide fund for nature (WWF), looking to the government called on Obama to combat climate change.
According to the national oceanic and atmospheric administration in 2012, also has the second most extreme weather records in 1998, after the hurricane heavy, based on the complicated mathematical formula, including temperature records, drought, heavy rains, land falling hurricane.
High damage events measured by Numbers, 2012 ranked second, 2011 years later, there are 11 different of the disaster, and cause more than 100 million dollars in damage, including Superstorm sandy and drought, NuoA said.
Drought is the worst since the 1950 s, just behind the 1930 s, sandstorm weather experts say. In the drought, the ground is so dry, there is not enough water in the soil evaporation to the atmosphere, resulting in the rain, hot and dry in the air. In the United States, it is with dry la hello.
Scientists say, even if with global warming, the natural and local climate change means, the temperature will rise and decline for many years. But in general, and the temperature rise successively. Temperature variation trend in the United States, have risen by 1.3 degrees, in the last century, according to NOAA data. Last year the United States is temperature than twenty century average is 1997 years.
In the national produced a record cold months last time is in December 1983.
Some scientists dumbfounded is, how far higher than other heat years, and 2012 years. Almost all of the first 117 years temperature recording balls in 51 degrees and 54 degrees, and 2012 more than 55 years old.
"The picture is emerging world more extreme heat," said Andrew DE, Michael, A Texas A and M university climate scientists. "Not every year will be hot, but when heat happened, heat will be more extreme, people need to start to prepare for the future."



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