Are Volcanic Eruptions Good for Society?

Pros	Cons
Volcanoes encourage tourism.  "In Hawaii, as hot lava meets seawater, it explodes into tiny bits, creating beautiful black beaches. In Iceland, the geysers	"When volcanoes explode,  it destroys everything around it."  - When Volcanoes Explode Example: Mt Saint Helen's 1980
	"An erupting volcano also shoots out huge clouds of ash mixed with poisonous  gases." - When Volcanoes Explode
	" Thick ash clouds are also dangerous  to jet planes." - When Volcanoes Explode Example: "(Because) volcanic ash can cause severe  damage to airplanes, several local airports have been shut down and all flights cancelled."  - Spectacular Eruption At Chile's Puyehue-Cordon Caulle Volcano