Wc22 - water and carbon supporting life on earth

• how can water cycling impact the climate?


  1. temperature rises

  2. evaporation increases

  3. volume of water vapour in atmosphere increases

  4. greenhouse effect increases

  (positive feedback)

  
  

  1. temperature rises

  2. evaporation increases

  3. volume of water vapour in the atmosphere increases

  4. cloud formation increases

  5. increased cloud cover reflects more solar radiation back into space

  6. temperatures fall

  (negative feedback)
• how can carbon cycling impact the climate?


  1. carbon dioxide levels in the atmosphere increase

  2. plant growth increases

  3. plants remove and store more carbon dioxide from the atmosphere

  4. carbon dioxide levels in the atmosphere decrease

  (negative feedback)

  
  

  1. temperatures rise

  2. rate of plant respiration increases

  3. carbon dioxide levels in the atmosphere increase

  4. greenhouse effect increases

  (positive feedback)
• how can water and carbon cycling together impact the climate?


  1. carbon dioxide concentrations rise

  2. greenhouse effect increases

  3. air temperatures rise

  4. more water vapour evaporates into the atmosphere

  5. greenhouse effect amplified