 During that period he revived the Irish Anti-Vivisection Society and the Esperanto Association of Ireland, became an Irish citizen in 1970, and founded the Vegetarian Society of Ireland and was Secretary of the European Vegetarian Union.In 1981 he initiated and chaired the founding meeting of the Ecology Party of Ireland, which later became the Irish Green Party.He stood unsuccessfully as a Green candidate for the European Parliament in 1984.