Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu:  Passage: Nyanzvi inozivikanwa zvikuru yemadutu William M. Gray neshamwari dzake paColorado State University vanobudisa fungidziro dzebasa remadutu gore rimwe nerimwe, vakaparadzana neNational Oceanic and Atmospheric Administration (NOAA). Boka raGray rakagumisa avhareji yenhamba yemadutu pamwaka pakati pa1950 na2000 kuva 9.6 madutu anopisa, 5.9 madutu, uye 2.3 madutu makuru (madutu anopfuura Chikamu 3). Mwaka wenguva dzose, sezvinorondedzerwa neNOAA, une madutu ane mazita 9 kusvika ku12, ayo 5 kusvika ku7 anosvika pakusimba sedutu uye 1 kusvika ku3 anova madutu makuru.  Mubvunzo: Gray neboka rake vanoshanda kupi?
Colorado State University