Water in Helheim Glacier Makes Its Way to the Ocean

The video explains how water flows on ice sheets, with some water trapped in a compacted snow region called Fern, forming a natural aquifer. A NASA study on Helheim Glacier in Greenland shows that water from the Fern may reach the glacier bed through crevasses, contributing to sea level rise.

How does the accumulation of water in the Fern affect the surrounding environment?

Explain the significance of crevasses in the Helheim Glacier.