Is the climate change that Greenland is experiencing and will continue to experience a good thing or bad thing for Greenland and the Greenlanders that live there?

bad thing.

Explanation:

most of Greenland is an icy island with the only main population on the west coast.

Although this would probably open up more land for use; the rising sea levels are a much bigger threat comparatively with the perks of warmer climate.

bad thing