The Thwaites Glacier is the widest in the world, with an area comparable to the US state of Florida. Its location, on downward-sloping land, makes it extremely vulnerable to erosion caused by seawater. This particularity makes Thwaites the most unstable glacier in Antarctica, which worries scientists about its future. Researchers have been monitoring the impact of climate change on ocean currents for decades, and evidence shows that warmer seawater is being pushed toward the coasts of Antarctica and other polar regions, according to scientists.