Scientists have figured out the worst that could happen if the mammoth chuck of continental ice at the bottom of the world—the West Antarctic Ice Sheet—continues melting. By 2100, ice sheet melt would raise sea levels by 7.9 inches, enough to pose a risk to low-lying nations, according to a study published today in The Cryosphere.
By 2200, ice sheet melt would raise sea levels by 1.6 feet.
The melted water from Antarctica and Greenland, glaciers, and the thermal expansion of the ocean due to higher temperatures are expected to raise sea levels by 3.3 feet in 2100, according to the Intergovernmental Panel on Climate Change. That would be sufficient to submerge 17 percent of Bangladesh.