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Some basic questions about climate models

Authors: David B. South, Peter Brown, Bill Dyck
Publication: New Zealand Journal of Forestry, Volume N.Z.J.For. 2009, Issue N.Z.J.For. 54(3) 2009, pp 6-12, Nov 2009
Publisher: New Zealand Institute of Forestry
Abstract: Some foresters are concerned about increasing CO2 levels in the atmosphere while others doubt that CO2 has been the main driver of climate change over the past million years or over the past two centuries (Brown et al. 2008). We three admit that (1) we do not know what the future climate will be in the year 2100, (2) we do not pretend to know the strength of individual feedback factors, (3) we do not know how much 600 ppm of CO2 will warm the Earth and (4) we do not know how the climate will affect the price of pine sawlogs in the year 2050 (in either relative or absolute terms). The climate is not a simple system and therefore we believe it is important to ask questions. The following 15 questions deal mainly with global climate models (GCM).
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