Volcanoes do far more than reshape landscapes—they can alter the climate of the entire planet. In this episode, we explore how major volcanic eruptions can inject enormous amounts of ash, dust, and sulfur-rich gases high into the atmosphere, where they reflect sunlight back into space and temporarily cool the Earth. Under the right conditions, a single eruption can lower global temperatures, disrupt weather patterns, shorten growing seasons, and make summers feel surprisingly cold.

This episode dives into geology, atmospheric science, climatology, volcanology, Earth systems, aerosols, weather patterns, and historical climate events. We explore famous eruptions that triggered global cooling, how volcanic particles spread through the stratosphere, why sunlight becomes less effective at warming the planet, and how these rare events can affect  ...