What causes ice shelf collapse?

Ice shelf collapse happens when big pieces of ice that float on water suddenly break off and fall into the ocean.

Imagine you have a big block of ice, like a giant Lego piece, floating in your bathtub. It’s held together by ice bridges, which are like sticky glue between the blocks. But if the water gets warmer or the ice cracks, those bridges can get weaker, it's like when your Lego tower starts to wobble.

Sometimes, ice streams, like rivers of ice moving slowly, push against the shelf. It’s like trying to hold a door shut while someone pushes on the other side. Over time, that pressure can make the shelf thinner and more likely to break.

Also, melting from above and below can make things worse. If snow melts on top or warm water melts the bottom, it's like adding holes in your Lego block, it gets weaker and weaker until snap! a big chunk falls into the water.

It’s not magic, just ice, water, and a little pressure doing their jobs!