Why do glaciers matter in terms of their impact on the environment and global climate change?

Glaciers are important because they store a significant amount of Earth's freshwater, which affects global sea levels and water availability. As glaciers melt due to climate change, they contribute to rising sea levels and can disrupt ecosystems and water supplies. Additionally, the reflective surface of glaciers helps regulate Earth's temperature by reflecting sunlight, so their loss can contribute to further warming.