for me the songs about how blake cant really love someone, how he cant hold on to a relationship. Alaska is his own world, with no friends or any relationship at all besides things that arent people. So amanda compares this cold world of his with Alaska. When she says
"The globe is getting warmer all the time
It’s still cold in Alaska"
Means that the people around blake can hold on to a relationship of any kind, so that's why the globe is warmer, but blake dont want to or cant do that so it still cold in Alaska since he's still lonely
for me the songs about how blake cant really love someone, how he cant hold on to a relationship. Alaska is his own world, with no friends or any relationship at all besides things that arent people. So amanda compares this cold world of his with Alaska. When she says
"The globe is getting warmer all the time
It’s still cold in Alaska"
Means that the people around blake can hold on to a relationship of any kind, so that's why the globe is warmer, but blake dont want to or cant do that so it still cold in Alaska since he's still lonely