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The Earth as a cooking pot

The Earth as a cooking pot (Credit: Max Planck Institute for Biogeochemistry)

A stronger greenhouse effect puts a thicker ‘lid’ over the Earth’s surface but, if there is no additional sunlight (if we don’t turn up the heat on the stove), extra evaporation takes place solely due to the increase in temperature. Turning up the heat by increasing solar radiation, on the other hand, enhances the energy flow through the Earth’s surface because of the need to balance the greater energy input with stronger cooling fluxes from the surface. As a result, there is more evaporation and a stronger effect on the water cycle.

Credit: Max Planck Institute for Biogeochemistry

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