Cryosphere

The Cryosphere

The cryosphere is the cold part of Earth where water is frozen. It includes snow, ice on lakes and rivers, sea ice, glaciers, big ice sheets, and frozen ground called permafrost. These frozen places are important for our planet.

Snow and ice help keep Earth cool because they reflect sunlight. They also act like warm blankets, keeping the ground or ocean underneath warmer. When snow or ice melts, it needs a lot of energy, which can slow down warming in the spring and summer.

The cryosphere is one part of Earth’s climate system. It works with the air, water, land, and all living things. Scientists study the cryosphere to understand how Earth’s climate changes.

Today, the cryosphere is changing because of climate change. We see this in melting ice sheets, shrinking glaciers, less sea ice, warming permafrost, and smaller amounts of snow. These changes affect the whole global climate system.