欧盟机构：多地寒潮，但气候变暖趋势并未改变

Core Viewpoint - The extreme cold weather in January does not indicate a change in the overall trend of global climate warming, as stated by the Copernicus Climate Change Service of the EU [1][2]. Group 1: Climate Data - January 2026 was recorded as the fifth warmest January globally, with an average surface temperature of 12.95 degrees Celsius, which is 0.51 degrees Celsius higher than the average from 1991 to 2020 and approximately 1.47 degrees Celsius above pre-industrial levels (1850-1900) [1]. - The average sea surface temperature between latitudes 60 degrees North and South in January was 20.68 degrees Celsius, marking the fourth highest for that month on record [1]. Group 2: Weather Patterns - The severe cold weather in the Northern Hemisphere in January was primarily caused by short-term large-scale atmospheric circulation anomalies, with the polar jet stream becoming more variable, allowing Arctic cold air to spill into mid-latitudes [2]. - The report emphasizes that the strong cold waves observed in January are a result of regional temperature fluctuations due to short-term circulation changes, which may temporarily overshadow the long-term warming trend but do not contradict the scientific understanding of global warming [2]. Group 3: Climate Change Implications - The situation in January 2026 illustrates that the climate system can simultaneously bring both severe cold and extreme heat to different regions [2]. - The ongoing human activities that contribute to climate warming highlight the importance of enhancing resilience and adaptability to address the increasing risks of extreme weather events [2].