climate change and 1 point maximum for explaining a long-term climate
change) In the short term, dust and other particulates released into the
atmosphere from the eruption block the sun’s rays and tend to decrease
temperatures. This is caused by the sulfur dioxide gas that is released by the
volcano reacting with oxygen to form solid sulfate aerosols which remain
suspended in the atmosphere long after the solid ash particles have fallen
back to Earth.
In the long term, gases such as carbon dioxide released during the
eruption would accumulate in the stratosphere. There they would contribute
to the greenhouse effect. They would absorb energy radiated back from Earth,
leading to an increase in the global temperature. The degree of temperature
change via this mechanism would be much less than by dust blocking the
sun, but the effect would last much longer.Question