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[½»Á÷] 2013/1/18 news of the week@SCIENCEÖ®Áù£º2012Ä꣺ÓмǼÒÔÀ´×îÈȵÄÒ»Äê

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Washington, D.C. 6
NOAA: 2012 Hottest Year On Record for U.S.
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Last year saw the warmest average temperatures on record¡ªat least for the contiguous United States, according to a report released last week by the National Oceanic and Atmospheric Administration (NOAA). The average temperature was 13¡ãC, compared with a 20th century average of 11.2¡ãC. (The previous record-holder, 1998, saw average temperatures of 12.4¡ãC). The year consisted of ¡°a record warm spring, the second warmest summer, the fourth warmest winter, and a warmer than average autumn,¡± said climate scientist Jake Crouch, of NOAA¡¯s National Climatic Data Center, in a press conference on 8 January. The data do not address global temperatures, however.

¹ú¼Òº£ÑóºÍ´óÆø¹ÜÀí¾Ö£¨NOAA£©ÉÏÖÜ·¢²¼µÄÒ»·Ý±¨¸æÏÔʾ£¬È¥ÄêÊÇÓмǼÒÔÀ´Æ½¾ùÆøÎÂ×î¸ßµÄÒ»Äê----ÖÁÉÙÔÚÃÀ¹ú´ó½µØÇøÊÇÕâÑù¡£Æ½¾ùÆøÎÂ13¡ãC£¬Ïà±È¶øÑÔÕû¸ö20ÊÀ¼ÍµÄƽ¾ùÆøÎÂÖ»ÓÐ11.2¡ãC£¨Ö®Ç°×î¸ßƽ¾ùÎÂÊÇ1998ÄêµÄ12.4¡ãC£©¡£ÔÚ1ÔÂ8ºÅµÄÒ»´ÎÐÂÎÅ·¢²¼»áÉÏ£¬NOAAÊý¾ÝÖÐÐĵĿÆÑ§¼ÒJake Crouch˵£¬¡°ÓмǼÒÔÀ´×îůºÍµÄ´ºÌ죬µÚ¶þÑ×ÈȵÄÏÄÌ죬µÚËÄůºÍµÄÇïÌìºÍ¸ßÓÚÆ½¾ùÆøÎµĶ¬Ì족×é³ÉÁËÈ¥ÄêµÄËĸö¼¾½Ú¡£


Meanwhile, a draft of another climate related report¡ªthe U.S. Global Change Research Program¡¯s National Climate Assessment on the impact of global warming in the United States, released every 4 years¡ª was published on 11 January.It points to stronger evidence that the climate is changing rapidly, and primarily as a result of human activities, including the burning of fossil fuels¡ªand notes that there will be increasing impacts on crops and fresh water supplies. The report, written by a group of 240 scientists, will now undergo a 3-month period of public comment and review.

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