IAs shown by Hadley cell circulation — the warm, dry sinking air
at those latitudes creates …n a new study, researchers from the
National Center for Atmospheric Research (NCAR) found that the
climate models which have been able to best model current
relative humidity conditions are also the ones that predict the
highest temperature increases in the future. "There is a
striking relationship between how well climate models simulate
relative humidity in key areas and how much warming they show in
response to increasing carbon dioxide," said John Fasullo, ,
according to Science Daily. Fasullo is a project scientist with
NCAR's Climate Analysis Section (CAS) and one of the study's co-
authors. "Given how fundamental these processes are to clouds
and the overall global climate, our findings indicate that
warming is likely to be on the high side of current
projections." Fasullo and Kevin Trenberth, the head of the CAS,
ran simulations on 16 of the best climate models in use — the
same ones used in generating the Unit