00:00What if one glacier could change coastlines around the world?
00:03Scientists say Antarctica's Doomsday Glacier may lose its protective ice shelf this year,
00:09and that could speed up global sea level rise.
00:12The glacier is called Thwaites, and it's already melting faster,
00:16because warmer ocean water is attacking it from below.
00:19Right now, the floating ice shelf acts like a giant wall holding the glacier back.
00:24But huge cracks are spreading across the ice,
00:27and researchers believe the shelf is close to breaking apart.
00:31Once that happens, the glacier could flow into the ocean much faster.
00:35If the entire Thwaites Glacier ever collapsed, sea levels could rise by more than two feet.
00:41And even worse, it could destabilize nearby glaciers,
00:45leading to several more feet of rise over time.
00:47Cities like Miami, New York, and parts of Asia
00:51could face massive flooding risks in the future.
00:54Scientists say this won't happen overnight,
00:56but the warning signs are getting louder every year.
00:59The Doomsday Glacier isn't just an Antarctic problem anymore.
01:03It's a global one.
01:05The Doomsday Glacier is a global one.
01:05The Doomsday Glacier is a global one.
01:05The Doomsday Glacier is a global one.
01:05The Doomsday Glacier is a global one.
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