These resources are brought to you by the Cooperative Extension System and your Local Institution

Climate, Forests and Woodlands Home

Have a question? Try asking one of our Experts

How can a volcano erupting affect global climate?

Last Updated: May 16, 2011

View as web page


When volcanoes erupt, they release massive amounts of gases and particles into the atmosphere. These particles, referred to by scientists as "aerosols," reflect incoming solar radiation back into outer space, cooling the planet. The influence of volcanic emissions can be felt hemispherically, or globally, if the emissions reach the upper atmosphere (stratosphere). Major explosive volcanic eruptions, such as the 1991 eruption of Mt. Pinatubo, can produce surface cooling on the order of around 0.5 degrees C (0.9 degrees F) for several years.

Browse related Faqs by tag: climate, gases, climate forests woodlands, particles, volcanoes


Have a specific question? Try asking one of our Experts

Unlike most other resources on the web, we have experts from Universities around the country ready to answer your questions.