x

Energy balance and source choices

Energy balance and source choices

Earth energy balance showing incoming solar radiation, reflection, outgoing infrared radiation, and greenhouse gases re-emitting some infrared Earth's average temperature is stable only when the power it absorbs from the Sun equals the power it radiates back into space. Greenhouse gases such as CO2CO_2CO2​ absorb and re-emit some outgoing infrared, so Earth warms until a new balance is reached.

Option D: Energy and the Environment Lesson

  1. A Level
  2. /Physics
  3. /Option D: Energy and the Environment