GENERAL KNOWLEDGE

Detailed explanation-1: -The temperature needed to keep the earth’s surface and the atmosphere in thermal equilibrium is called the mean global surface temperature.

Detailed explanation-2: -Equilibrium of the Earth The incoming solar energy to the Earth must be balanced-meaning the Earth must radiate just as much as heat as it receives. The greenhouse effect slows down the heat transfer from Earth to space, making the planet hotter.

Detailed explanation-3: -This is radiative equilibrium, energy balance. The temperature at which this occurs is about 0 F. That is called the temperature of radiative equilibrium. You might remember this is the figure for global annual average surface temperature on the earth without the greenhouse effect.