If a volcanic eruption produces a climate impact that lasts for a year or longer, the most likely culprit is:

Question

Quizplus · Accepted Answer

Aerosols produced by sulfur dioxide emitted from the volcano can remain in the atmosphere for a year or longer, reflecting sunlight and cooling the earth's surface. Ash and debris can settle relatively quickly and the state of the climate at the time of the eruption can also impact the severity and duration of the climate impact, but neither are as likely to produce a lasting impact as sulfur dioxide aerosols.

If a Volcanic Eruption Produces a Climate Impact That Lasts