The earth pole refers to the intersection of the earth's rotation axis and the ground. The earth has two poles, the South Pole is located in the Antarctic continent and the North Pole is located in the Arctic Ocean. In the Antarctic, all directions are north, and so is the North Pole.

The Arctic is actually an icy ocean surrounded by land. On the contrary, Antarctica is a continent of mountains and lakes surrounded by oceans. The southernmost continent has about 90% of the world's ice. It is equivalent to nearly 3/4 of the earth's fresh water stored there.

There is an ozone hole over Antarctica, which has expanded to about three times the land area of the United States, but the Arctic region is also losing its ozone coverage. Ozone consumption in the northern hemisphere is less than that in the southern hemisphere, because the higher temperature in the Arctic limits the formation of polar stratospheric clouds. This cloud will destroy ozone. However, in the past 65,438+00 years, the temperature in the stratosphere over the Arctic has gradually decreased, resulting in an increase in ozone loss.