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What would happen if all convection currents on Earth stopped?
Question Date: 2017-01-30
Answer 1:

If all convection currents on Earth stopped that would be a natural disaster. The amount of heat which the sun radiates at us sets the temperature of the Earth's surface. If it weren't for convection, then the North and South poles would be even colder and the equator even hotter. Oceanic currents like the Gulf Stream bring warm water further north, and currents like the California current bring cold water towards the equator. So if convection completely stopped the high and low temperatures would force people and animals to move away from the poles and equator.

Most of the rocks in the earth convect at a large scale. Even though they are solid they can still move slowly, a little like putty. Convection can even help form large islands like Hawaii and Samoa in the Pacific Ocean. If the rocks stopped flowing inside the Earth we would eventually not have any new volcanoes on islands as well!

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