What’s the cause and effect of an iceberg breaking off?

Question

I saw on the news that the world’s largest iceberg in Antartica broke off.
1. How does this happen?
2. What are the consequences of this happening?

In: Earth Science

Answer 1

If the iceberg started as sea ice, there is no effect on ocean levels. If the ice going into the oceans was formerly land-based, it increases the amount of water in the ocean and “sea levels” rise.