a) since China has essentially supplanted the WorldBank/IMF in providing loans to a lot of the "global south" specifically Africa
b) and since the US Empire essentially needs to keep growing in order to maintain solvent
c) and Russia/China are really bullish on the Northern sea routes - they have icebreakers all ready to open channels in an already weakened polar ice
Suddenly Canada and Greenland have outsized geopolitical importance as those might become trade hubs in a climate changed world.