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The year 2017 was the warmest in modern record, according to two independent analyses by scientists at NASA and the National Ocean Atmospheric Administration. And, with the exception of 1998, the 10 warmest years in modern record occurred in the 21st century. These results, NASA says, are part of a long-term warming trend that is largely driven by an increase in carbon dioxide emissions, as well as other human emissions, into the atmosphere. 据两位美国航空航天局和美国国家海洋大气管理局的独立科学家分析,2017年是现代气象记录中最热的一年。除了1998年，现代记录中最暖和的10年都在21世纪。美国航空航天局表示，这样的结果来自于长期的变暖趋势。而不断增长二氧化碳排放，以及其他进入大气的人为排放，都是导致这种变暖趋势的主因。 "The globe is warmer now than it has been in the last 100 years and more likely in at least 5,000 years," climate scientist Jennifer Francis of Rutgers University told the Associated Press. "Any wisps of doubt that human activities are at fault are now gone with the wind. " “如今的地球的确比100年前要暖和很多，并且这种变暖趋势要持续近5000年。”气候科学家珍妮弗·弗朗西斯告诉美联社记者。“那些对人为造成气候变暖理论的怀疑如今也烟消云散。” To reach these conclusions, NASA and NOAA analyzed global temperature data. The analyses showed that the Earth's average surface temperature has warmed by 1.4 degrees Fahrenheit (0.8 degrees celsius) since 1880, when records were first kept. That warming, NASA explains, has largely taken place over the last 30 years. | 
