Napajäätiköiden
Napajäätiköiden, or polar ice caps, are large masses of ice found at the Earth's North and South Poles. The most significant napajäätiköiden are the Greenland ice sheet and the Antarctic ice sheet. These ice sheets are not static; they are constantly replenished by snowfall and are also subject to melting and calving, where large chunks of ice break off and form icebergs.
The formation of napajäätiköiden began millions of years ago. Over time, accumulated snowfall, compressed under its
The melting of napajäätiköiden is a significant concern in the context of climate change. Rising global temperatures