Pedzisa mutsara unotevera: Mumakumi maviri emakore akatevera, Green akashanda munyika dzakawanda, achibatanidzwa mumabasa aipikisa rusaruraganda uye akaisa pfungwa pakusimudzira nzanga. Akatora chinzvimbo chehutungamiriri kuCUSO, achishanda semubatanidzwa wedunhu wesangano repasi rose rekuvandudza. Muchiitiko ichi, Green akatsigira mapurojekiti kumabvazuva, kumaodzanyemba, uye pakati peAfrica pamwe neCaribbean. Akaramba ari murongi weCUSO muGrenada kusvikira muna 1983. Green akabudiswa muchitsuwa cheGrenada, pashure pokunge
rakapambwa neUnited States zvichitevera kuurayiwa kwaMutungamiriri weHurumende Maurice Bishop.