[PaulDavisThe1st]

Radiative forcing is measured in watts per square meter. If you compute the total surface area of the earth [0] in square meters and that by multiply the radiative forcing number, you get watts.

[0] technically some layer of the earth between the ground and whatever you define as the edge of the atmosphere.

[foobarbecue]

Next time you might just apologize for incorrectly using the word "energy" when you meant flux, and for being off by an order of magnitude... The defensive stance is not a good look.