How Does Resolving the Paradox of the Antarctic Sea Ice Work?

The Antarctic Sea Ice grows bigger in some years and smaller in others, just like how your favorite ice cream cone can be full or half-melted depending on the weather.

Why it changes size

Imagine you're playing with a big snowball. When it's really cold, more snow piles onto the ball, making it grow, this is like winter in Antarctica. But when it gets warmer, the ice starts to melt and shrink, this is like summer there.

How the ice moves

Now think of the sea ice as a giant puzzle piece floating on water. When it's cold, more pieces join together, making the whole puzzle bigger. When it's warm, some pieces float away, making the puzzle smaller. It’s just like when you build with blocks, sometimes you add more blocks, and sometimes you take some away.

Even though parts of Antarctica are getting warmer, the way the ice moves means that in some years, it can grow a lot, like when you get extra blocks to build your tower!

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Examples

  1. A child notices more ice on the ocean even as it gets warmer outside.
  2. An ice cube grows bigger in a warm room when water freezes around it.
  3. More snow falls in winter, covering existing ice.

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