Trend Accelerating global warming and irreversible impacts

Summary

The report states that human activity has warmed the atmosphere, oceans and land and continues to do so. Many changes, above all sea level rise, have already become irreversible. Global warming is speeding up, the last three years were the hottest on record, and the three-year average now exceeds the 1.5 degrees agreed in Paris. The report attributes this apparent acceleration to rapid warming and ice melt in the polar regions and to record ocean temperatures. Prolonged droughts, wildfires, the most severe hurricanes, heavy rainfall and floods are becoming more frequent and intense, and the report judges that current mitigation and adaptation efforts are not enough to keep the risks under control.