How can explosive volcanic eruptions affect the atmosphere and weather around the world?

Explosive volcanic eruptions can inject large quantities of ash and sulfur dioxide into the stratosphere, leading to the formation of sulfate aerosols that reflect sunlight and cool the Earth's surface. This can disrupt global weather patterns, potentially causing temporary drops in temperatures and altering precipitation patterns. Additionally, the ash can affect air quality and visibility, impacting climate and weather systems far from the eruption site. Such effects can last for months to years, depending on the scale of the eruption.