How did Mount Krakatoa affect the atmosphere?

Answer 1

The volcanic dust thrown into the atmosphere affected the weather around the world, and people as far away as Britain and the United States saw bizarre red sunsets caused by particles in the atmosphere.

Answer 2

The eruption of Mount Krakatoa in 1883 released large amounts of volcanic ash, sulfur dioxide, and other gases into the atmosphere. This caused a decrease in global temperatures due to the blocking of sunlight, resulting in a phenomenon known as "volcanic winter." The sulfur dioxide also contributed to the formation of sulfuric acid aerosols, which led to colorful sunsets around the world.