Marco was looking at this picture of two boats sitting differently in the water. He decided to compare the way the two boats sit in the water to the way land is behaving in Greenland. Illustration of two boats with the boat on the left sitting higher in the water and showing a shallower water level than the boat on the right which is sitting lower in the water and shows a deeper water level.

Explain how what is happening in Greenland is similar to the ways the two boats are sitting in the water.