• The impact of the Kyoto Protocol on global temperature is quite modest, especially for the first century. The reduction in global mean temperature in the Annex I case relative to the reference in 2100 is 0.13ºC; this compares with a difference of 0.17ºC from the Kyoto Protocol calculated by Wigley. The temperature reduction in the optimal run is essentially the same as the Kyoto runs by the 22nd century.

    Henry Sylvester Jacoby: The impact of the Kyoto Protocol on global temperature is quite modest, especially for the first century. The reduction in global mean temperature in the Annex I case relative to the reference in 2100 is 0.13ºC; this compares with a difference of 0.17ºC from the Kyoto Protocol calculated by Wigley. The temperature reduction in the optimal run is essentially the same as the Kyoto runs by the 22nd century.