Earth & Environment
How Volcanic Eruptions Cool the Planet: The Sulfur Pathway from Eruption Column to Global Temperature Drop
Large explosive volcanic eruptions cool the planet by injecting sulfur dioxide into the stratosphere, where it transforms into reflective sulfuric acid aerosols. This stratospheric haze scatters sunlight, causing measurable global cooling for years, a stark contrast to long-term warming from human CO2 emissions.
Mateo Rojas·October 29, 2026
