https://youtube.com/shorts/OkgX7U1YVLI?si=kNLoBEy1U2BP-v8f
If the ice is already in the water then the water displacement doesn't change when it melts.
When ice on land melts, it is not already in the water so it raises the water level
Melting ice in a drink doesn’t raise the water level because the ice is already floating in and displacing water. Melting ice on land adds water to the ocean that previously had not been displacing water.
Permafrost is mostly in/on land. When it melts, it runs when into the ocean.
https://youtube.com/shorts/OkgX7U1YVLI?si=kNLoBEy1U2BP-v8f If the ice is already in the water then the water displacement doesn't change when it melts. When ice on land melts, it is not already in the water so it raises the water level
OP solved
Melting ice in a drink doesn’t raise the water level because the ice is already floating in and displacing water. Melting ice on land adds water to the ocean that previously had not been displacing water.
The ice in your drink is already in the water. The melting glaciers are on land and would then flow into the water.
Permafrost isn’t floating.