Previous coupled ocean‐atmosphere model simulations showed that the reduction in global warming is only moderate by year 2100 under CO 2 stabilization (STA) scenarios compared with that under business‐as‐usual (BAU) scenarios. To further illustrate the long‐term effect of stabilizing CO 2 on global climate, we integrated a coupled ocean‐atmosphere model from 1870 to 2200 forced by historical and projected CO 2 , SO 2 and other greenhouse gases under newly updated BAU and STA scenarios. Our results show that the reduction in global warming resulting from CO 2 stabilization could be large (∼1.5°C globally, and up to 12°C in DJF at northern high‐latitudes) by the later part of the 22 nd century. Stabilizing the CO 2 level also results in reduced changes in precipitation, soil moisture and diurnal temperature range. BAU and STA patterns of change are similar for all variables examined.
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Dai et al. (2001) studied this question.
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