2、ldpatternswillbestrongerwhentheyoccur,saidJamesHansenofNASA’sGoddardInstituteforSpaceStudies. TheElNinophenomenonisanimportantfactorinmonitoringglobalwarming,accordingtoapaperbyHansenandcolleaguespublishedinthecurrentProceedingsoftheNationalAcademyofSciences. E