Consider the following statements regarding the recent UNESCO report on global glacier loss.
1. The last three years have recorded the largest glacial mass loss on record.
2. The loss of 9 trillion tonnes of ice since 1975 is equivalent to an ice block the size of Germany with a thickness of 25 meters.
3. Melting mountain glaciers have contributed to approximately 18 cm of global sea level rise between 2000 and 2023.
4. Rising temperatures are expected to increase the severity and frequency of glacial lake outburst floods (GLOFs).
Which of the statements given above are correct?
