Cika wannan jumla: Mataimakin Shugaban kasa Biden ya kuma ambaci nasarar Yarjejeniyar Mayors yayin da yake magana a ranar 5 ga Nuwamba, 2015 a Ƙungiyar Ƙasa ta Ƙasar Cities Congress of Cities a Nashville, Tennessee, Amurka. A ranar 20 ga Nuwamba, 2015, Fadar White House ta amince da Yarjejeniyar Magajin Gida don wucewa 100 membobin biranen Amurka kafin
COP 21 tattaunawar sauyin yanayi a Paris.