欧盟机构：1月多地寒潮并不意味气候变暖趋势改变

Core Viewpoint - The overall trend of global warming remains unchanged despite extreme weather events in January 2026, which included strong cold waves in various regions [1][2]. Group 1: Global Temperature and Climate Trends - 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 higher than pre-industrial levels (1850-1900) [1]. - The average sea surface temperature between latitudes 60 degrees North and South was 20.68 degrees Celsius, marking the fourth highest for January on record [1]. Group 2: Regional Weather Patterns - The latter half of January 2026 saw a stark contrast in temperatures between the Northern and Southern Hemispheres, with North America, Europe, and Siberia experiencing severe cold, while regions in the Southern Hemisphere, such as Australia and Chile, faced record high temperatures and intensified extreme weather events [1][2]. - The severe cold in the Northern Hemisphere was attributed to short-term large-scale atmospheric circulation anomalies, particularly the increased volatility of the polar jet stream, which allowed Arctic cold air to spill into mid-latitudes [2]. Group 3: Climate Change Implications - The report emphasizes that the extreme cold waves observed in January are a result of short-term circulation changes and do not contradict the long-term trend of global warming [2]. - The situation highlights the importance of enhancing resilience and adaptability to cope with increasingly severe extreme weather risks, as human activities continue to drive long-term climate change [2].