The primary cause of melting glaciers is the increase in global temperatures due to climate change. Human activities, particularly the burning of fossil fuels and deforestation, have led to a significant rise in greenhouse gas concentrations, trapping heat in the atmosphere. This warming has resulted in accelerated melting of glaciers worldwide, contributing to rising sea levels and altering freshwater availability. The loss of glaciers also has cascading effects on ecosystems, water supply for agriculture, and local communities that rely on glacial meltwater as a crucial resource.