The current seems to connect through clouds of sulfur dioxide gas shooting up out of volcanoes at these points. (discovermagazine.com)
Amid clouds of toxic sulfur dioxide gas, he carries heavy loads up a steep, rocky path from the crater floor to the rim, then to a distant weigh - station. (artofthetimes.com)
The eruption would likely spout sulfur dioxide gas into the atmosphere where it would trigger global climate cooling. (businessinsider.com)