ABSTRACT

InSection4.2,wewillŸrstoutlinehowtheanthropogenicallyinducedglobalclimatechangea§ectslarge-scaleand,in

turn, regional and small-scale žows. While many of the detailed mechanismsinthischainofinžuencesremainunknown,aconsiderationoftherelevantspatialandtemporalscalesandthe relevantprocessescorrespondingtothesescaleswillgiveusa headstart.InSection4.3,wewilldiscusssomekeyfeaturesof large-scaleclimatechangeaspredictedbyIPCC-gradeglobal climatemodelsdrivenbyGHGforcing.›issetsthetonefor thediscussioninSection4.4onhowtheseprojectedlarge-scale changesinžowpattern,temperature,stratiŸcation,etc.,maybe usedtohelppredictregionalenvironmentalžows.›isdiscussionwillcenterontheemergingideaofclimatedownscaling, supplementedbythemorespeculativeconceptofupscaling.›e remainingchallengesinunderstandingandpredictingthemultiscaleinteractionfromglobaltourbanscaleswillbediscussed in Section 4.5.