Entire countries vanish beneath rising global seas.
As scientists model extreme climate outcomes, one scenario stands out for its staggering scale. If the Antarctic ice sheet melted entirely, global sea levels would rise far beyond anything modern civilization has ever confronted. Low lying nations would be swallowed, coastlines would redraw themselves and millions would lose the ground beneath their homes. The idea feels distant, yet its implications are so sweeping that researchers continue treating it as a crucial warning. In that imagined future, geography itself becomes fragile and whole countries sit on the brink of erasure.
