Volcanoes can influence climate change in several ways. When a volcano erupts, it releases ash and sulfur dioxide into the atmosphere. Sulfur dioxide can form sulfate aerosols, which reflect sunlight away from the Earth's surface, leading to a cooling effect. Additionally, volcanic eruptions can release greenhouse gases like carbon dioxide and methane, contributing to the warming of the Earth's climate. Overall, the impact of volcanoes on climate change can vary depending on the scale and frequency of eruptions.