yes, it's the same an antarctica. what the hell do you think is underneath a land that's frozen 24/7? hint: it's not more ice. it's earth, and with earth comes a variety of untouched resources underneath it. this has actually been discussed for 15 years, america has had its eye on greenland before trump. greenland is expected to "thaw out" in the coming decade or two due to the area getting slightly hotter thus not capable of sustaining its ice anymore.
United States