2025年成为有记录以来第三热年份

Core Insights - The European Union's Copernicus Climate Change Service reported that 2025 is projected to be the third hottest year on record, with a global average temperature exceeding pre-industrial levels by more than 1.5 degrees Celsius for the first time in a three-year period from 2023 to 2025 [1][2] Group 1 - The global average temperature for 2025 is estimated at 14.97 degrees Celsius, only 0.01 degrees lower than 2023 and 0.13 degrees lower than the record set in 2024 [1] - The long-term global warming level is estimated to be approximately 1.4 degrees Celsius above pre-industrial levels, with the past 11 years being the warmest on record [2] - In 2025, the global surface temperature is projected to be 1.47 degrees Celsius higher than pre-industrial levels, while the value for 2024 was 1.6 degrees Celsius [2] Group 2 - The average annual temperature in Antarctica is expected to reach a record high in 2025, while the Arctic region will experience its second-highest average annual temperature on record [2] - In February 2025, the combined sea ice coverage in both polar regions is projected to drop to the lowest level observed since satellite monitoring began in the late 1970s [2] - The report attributes the unusually warm global temperatures over the past three years to multiple factors, including the accumulation of greenhouse gases, weakened natural carbon sinks, and elevated ocean surface temperatures linked to El Niño and other oceanic changes [2]