Glacial retreats occur when glaciers lose more ice than they gain, often due to rising temperatures. As the climate warms, glaciers melt faster, leading to a reduction in their size and mass. This process can be observed in many regions around the world, including the Alps and Greenland. The retreat of glaciers can have significant impacts on the environment. It contributes to rising sea levels, which can affect coastal communities. Additionally, the loss of glaciers can disrupt local ecosystems and water supplies, as many rivers depend on glacial meltwater for their flow during warmer months.