Summary:
- The ice on Greenland has been behaving strangely in recent years, with unexpected changes in its behavior.
- Scientists believe they have finally discovered the reason for these changes - a process called "firn aquifer formation" where meltwater from the surface is trapped within the snow and ice.
- This trapping of meltwater can affect the overall stability and movement of the Greenland ice sheet, which has important implications for understanding and predicting sea level rise.