GEOLOGY

Detailed explanation-1: -Injected ash falls rapidly from the stratosphere–most of it is removed within several days to weeks–and has little impact on climate change. But volcanic gases like sulfur dioxide can cause global cooling, while volcanic carbon dioxide, a greenhouse gas, has the potential to promote global warming.

Detailed explanation-2: -Volcanoes spew hot, dangerous gases, ash, lava, and rock that are powerfully destructive. People have died from volcanic blasts. Volcanic eruptions can result in additional threats to health, such as floods, mudslides, power outages, drinking water contamination, and wildfires.

Detailed explanation-3: -Gases and solids injected into the stratosphere circled the globe for three weeks. Volcanic eruptions of this magnitude can impact global climate, reducing the amount of solar radiation reaching the Earth’s surface, lowering temperatures in the troposphere, and changing atmospheric circulation patterns.

Detailed explanation-4: -Volcanic eruptions are often discussed in relation to climate change because they release CO2 (and other gases) into our atmosphere. However, human contributions to the carbon cycle are more than 100 times those from all the volcanoes in the world-combined.