Of course, climate change is not just the result of changes in greenhouse gasses. Climate is affected by solar cycles, by El-Nino events, by volcanic eruptions and by many other effects. KISS includes these by simply assuming that they lead to to random year-to-year fluctuations in global mean temperature. The model therefore produces a range of possible temperatures in which the minimum predicted temperature in a given year differs from the maximum predicted temperature by the interannual-variability. Try a value of 1 °C to see what it does to the “Average global temperature” display. Then adjust the level until the observed temperatures more or less fit into the predicted range.
From Sand Grains to Solar Systems
