text: I don??t know if the authors used NCAR-PCM or NCAR-CCSM3. But note that NCAR-CCSM3 shows more warming than typical of models. I would suggest that if NCAR-CCSM3 was chosen, one might need to take the projections about impact of farming with a grain of salt. That said: it??s possible precipitation is the greater effect and my comparison of models shown above can??t tell us anything about that.