研究显示气候变暖或致全球冰川年均减少2000到4000处

Group 1 - The research indicates that if climate change is not effectively addressed, the global glacier loss will accelerate from an average of 1,000 glaciers per year to between 2,000 and 4,000 glaciers per year by the 2040s [1] - If the global average temperature rises by 1.5 degrees Celsius compared to pre-industrial levels, a peak in glacier melting is expected around 2041, with an average annual loss of 2,000 glaciers, leading to a reduction of over half in the total number of glaciers by the end of the century [2] - Should the temperature increase reach 2.7 degrees Celsius, the peak glacier loss will occur between 2040 and 2060, with an average annual loss of about 3,000 glaciers, resulting in only approximately 44,000 glaciers remaining by the century's end [2] Group 2 - The study emphasizes the focus on the number of glaciers rather than just their size and area, noting that while smaller glaciers may not significantly impact sea level rise compared to larger ones, their loss is still critical for local populations dependent on them [4] - The melting of glaciers poses a threat to winter tourism economies, as many tourist attractions and ski resorts rely on glacier landscapes, which also hold historical and cultural significance [7] - The goals set by the Paris Agreement to limit global temperature rise to within 2 degrees Celsius, and ideally to 1.5 degrees Celsius, are increasingly challenged, with a significant probability of reaching the 1.5 degrees Celsius threshold by early 2028 if current carbon dioxide emission trends continue [7]