The carbon budget and the impact of the carbon cycle

• What is the carbon budget?:

  • The carbon budget is the difference between the inputs of carbon into a subsystem and outputs of carbon from it
• What is the carbon budget?

  The carbon budget is the difference between the inputs of carbon into a subsystem and outputs of carbon from it
• Inputs of carbon come from volcanic eruptions , burning fossil fuels and respiration. Outputs occur through photosynthesis , sequestration , decomposition , chemical weathering and ocean uptake
• The balance of the inputs and outputs of a subsystem determines whether it acts as a carbon source
• What does the balance of inputs and outputs of a subsystem determine?

  whether it is a carbon source
• What is a carbon source?:

  • A carbon source is where more carbon is released than absorbed
• What is a carbon source?

  A carbon source is where more carbon released than absorbed
• What is a carbon sink?:

  • Where more carbon is absorbed than released
• What is a carbon sink?

  Where more carbon is absorbed than released