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Last year was warmest in a century	2005年創(chuàng)全球百年高溫之最
Last year was warmest in a century Last year was the warmest in a century, nosing out 1998, a federal analysis concludes. Researchers calculated that 2005 produced the highest annual average surface temperature worldwide since instrument recordings began in the late 1800s, said James Hansen, director of NASA's Goddard Institute for Space Studies. The result confirms a prediction the institute made in December. In a telephone interview, Hansen said the analysis estimated temperatures in the Arctic from nearby weather stations because no direct data were available. Because of that, "we couldn't say with 100 percent certainty that it's the warmest year, but I'm reasonably confident that it was," Hansen said. More important, he said, is that 2005 reached the warmth of 1998 without help of the "El Nino of the century" that pushed temperatures up in 1998. Over the past 30 years, Earth has warmed a bit more than 1 degree in total, making it about the warmest it's been in 10,000 years, Hansen said. He blamed a buildup of heat-trapping greenhouse gases. Jay Lawrimore of the federal government's National Climatic Data Center said his own center's current data suggest 2005 came in a close second to 1998, in part because of how the Arctic was factored in. But he said a forthcoming analysis "will likely show that 2005 is slightly warmer than 1998." (Agencies)	一份美國分析報(bào)告顯示：2005年是近一個(gè)世紀(jì)以來最熱的一年，氣溫略微超過了1998年的記錄。 美國航空航天局戈達(dá)德空間研究中心的主任漢森說：根據(jù)研究人員的數(shù)據(jù)分析， 自19世紀(jì)后期有氣象資料紀(jì)錄以來，2005年是世界范圍內(nèi)地球表面平均氣溫最高的年份。 這份研究結(jié)果印證了去年12月份研究中心所做的預(yù)測(cè)。 漢森在一次電話采訪中說，因?yàn)闊o法獲取有關(guān)北極圈的第一手氣象資料，北極圈的氣溫是根據(jù)極圈附近氣象站的數(shù)據(jù)資料分析估算得出的。由此，"我們不敢完全肯定05年氣溫是歷年之最，但我對(duì)這個(gè)結(jié)論還是相當(dāng)有把握。" 漢森說，更重要的是，有別于1998年，2005年的高溫天氣沒有受到"百年不遇的厄爾尼諾"現(xiàn)象影響。 他同時(shí)說，在過去的30年里，地球氣溫上升了1度多，成為1萬年來全球最熱的時(shí)期。 漢森認(rèn)為"溫室氣體"排放量增加是罪魁禍?zhǔn)住? 美國國家氣候數(shù)據(jù)中心的杰尹·勞里莫爾說，中心現(xiàn)有的數(shù)據(jù)顯示，2005年氣溫略低于1998年，結(jié)論不同可能與如何處理北極圈的氣候數(shù)據(jù)有關(guān)。但他也表示，即將出爐的分析結(jié)果可能會(huì)顯示"2005年氣溫略高于1998年"。 (中國日?qǐng)?bào)網(wǎng)站編譯)