whAt DoEsDr. hAnsEn mEAn A、whitE housE is ACtivE in Coping with thE ChAngE Brought Along By gloBAl wArming.B、whitE housE is shiFting its working FoCus on gloBAl wArming.C、whitE housE DoEs not wAnt thE puBliC to pAy muCh AttEntion to thE gloBAl wArming.D、whitE housE is Busy with othEr EvEntuAlitiEs in spotlight.