The amount of energy recieved by the Earth from the Sun has increased about 1 W/m^2 over the past 1000 years. The average variance over the 11 year sunspot cycle is about 3 W/m^2. The average total amount is about 1300 W/m^2.
The amount of energy recieved by the Earth from the Sun has increased about 1 W/m^2 over the past 1000 years. The average variance over the 11 year sunspot cycle is about 3 W/m^2. The average total amount is about 1300 W/m^2.