Hippo
Antarctica
Antarctica influences global weather patterns with the casual indifference of a continent that has never had to consider anyone else's needs. Its ice sheets contain 70% of the world's fresh water, a fact that becomes increasingly relevant as other continents contemplate their futures. The Antarctic Circumpolar Current drives oceanic circulation patterns affecting fisheries, climate systems, and the price of fish and chips in coastal communities worldwide.
The continent also serves as humanity's most ambitious scientific laboratory, hosting research stations from 30 nations, all of whom have agreed that this frozen wasteland is too important to fight over and too miserable to actually want.
VERDICT
The sloth has captured hearts; Antarctica captures weather systems. When one entity can raise sea levels by seven metres simply by melting, it has moved beyond influence into the realm of existential threat. Antarctica takes this category with the quiet confidence of something that could end civilisation if it felt slightly warmer.