Core Insights - The World Meteorological Organization (WMO) has included the China-MST3.0 dataset in its 2025 global temperature change report, confirming that 2025 will be one of the three warmest years on record [1][5] - The China-MST3.0 dataset, developed by a team from Sun Yat-sen University, has become a key data source for international climate reports, contributing to global climate governance [1][5] - The dataset addresses challenges in global temperature monitoring, such as historical observation inconsistencies and sparse data in high-altitude and polar regions [1][3] Group 1: Dataset Development - The China-MST dataset was first launched in 2019, integrating land and ocean temperature data to improve accuracy [2] - The 2.0 version released in 2022 enhanced data for ice-covered areas and improved coverage in sparsely observed regions [2] - The 3.0 version introduced a comprehensive uncertainty assessment framework, significantly improving data quality and reliability [2][3] Group 2: Global Temperature Trends - The evaluation based on the China-MST3.0 dataset indicates a global average near-surface temperature increase of 1.07°C ± 0.05°C compared to the 1961-1990 climate standard, and 1.39°C ± 0.13°C compared to pre-industrial levels [5] - The analysis from eight datasets shows a clear trend of global warming, with an acceleration in warming rates beyond previous expectations [5] Group 3: Future Directions - The research team is focusing on developing higher-resolution climate application datasets and has recently completed a homogenized global solar radiation dataset [6] - The team aims to enhance data quality standards and strengthen international collaboration in climate research [6]

Group 1 - The core viewpoint of the articles is the confirmation of the existence of the Antarctic warming amplification effect, which is driven by human activities and ocean surface warming, leading to a significant increase in temperatures in the Antarctic region [1][2] - The Antarctic has experienced a warming of 0.12°C every decade over the past 40 years, which is slightly lower than the global average, indicating a delayed response to global warming [1] - The research indicates that under the 2°C warming scenario set by the Paris Agreement, the entire Antarctic region will show a robust warming signal, with an overall increase that is 1.4 times the average of the Southern Hemisphere [1] Group 2 - The study highlights that the Southern Hemisphere's roaring forties wind belt isolates the Antarctic, causing human activity's impact to be transmitted primarily through ocean surface warming, which explains the lag in Antarctic warming compared to other regions [2] - The research confirms the overall warming phenomenon in Antarctica and proves the existence of the Antarctic amplification effect, although it may take several decades to fully manifest [2]