Environmental Science
An important reason for the large daily temperature range over deserts is:

There is little water vapor in the air to absorb and re-radiate infrared radiation
Free convection cells are unable to form above the hot desert ground
The ozone content of desert air is very low
Dry air is a very poor heat conductor
The light-colored sand radiates heat very rapidly at night

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Environmental Science
The atmospheric greenhouse effect is produced mainly by the:

Absorption and re-emission of infrared radiation by the atmosphere
Absorption and re-emission of visible light by clouds
Absorption and re-emission of ultraviolet radiation by the atmosphere
Absorption and re-emission of visible light by the ground
Absorption and re-emission of visible light by the atmosphere

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