Nyorai mberi kweiyi ndima - Sechikamu cheGreta Thunberg's School Strike for Climate protest, Foster akabata kuramwa mabasa kwevhiki nevhiki kwemamiriro ekunze pamberi peWhite House muLafayette Square. Musi waGunyana 13, 2019, Thunberg sechikamu cherwendo rwake rwekupfuura-America kuenda kuCOP 25
muSantiago, Chile, vakabatana neWhite House yaFoster yokurwisa mamiriro okunze ayo akaunza zviuru kunzvimbo yacho. Munguva yaaive paHarvard University, aiita kurohwa kwemamiriro ekunze kwevhiki nevhiki pamatanho ari pamberi peWidener Library pamwe chete nevakurudziri veDivest Harvard avo vakakurudzira yunivhesiti kuti iise mari yavo muindasitiri yemafuta. Akabetsera kuwana mamwe masiginecha 186 nokuda kwechikumbiro chavo kuYunivhesiti yeHarvard mukati memwedzi yake mitatu muzhizha iroro. Mushure mekudzoka kwaFoster kubva kuHarvard University mukupera kwa2019, akasvikwa naJane Fonda kwaakakumbirwa kuti abatsire kuwana nekuvaka Fire Drill Chishanu yaive kurova kwemamiriro ekunze kwevhiki nevhiki kwakaitirwa pamberi peUS Capitol Building.