- InstitutoNacionaldelNinoylaFamiliaNinobeganstrummingonthemandolin.ElNinousuallylastsforabout18months.ThemostdevastatingElNinooccurredin1997.ThemostrecentpowerfulElNinocauseddamageworth$36billionaroundtheglobe.ResearchersatAustralia'sBureauofMeteorol...
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