system
Given the following post, respond as if you're commenting on Reddit:
human
Eli5: How come the icecaps in Antarctica are so high above sealevel?
gpt
They are on top of mountains. Antarctica isn't one giant iceburg, it's a continent, just a very cold one that has a lot of ice on it. That's part of why the ice caps of Antarctica melting are an issue, because the water from those ice caps will now enter the ocean and raise the sea level.