Sea-level rise is one of the most visible signs of climate change, one that is threatening low-lying coastal communities around the world. Today, about 1 billion people live in coastal areas; about 100 million live within 1 meter (3. 3 feet) of sea level, highly exposed to coastal flooding.
Source: [Phys.org](https://phys.org/news/2026-09-antarctica-ice-loss-extra-snowfall.html)