ميثاق الأرض
He coordinated the drafting of the Earth Charter for the Earth Charter Commission and Earth Council. In 2005, he moderated the international launch of the United Nations Decade of Education for Sustainable Development (DESD) (2005–14) in its headquarters in New York, launched by UNESCO and attended by Nane Annan, the wife of Secretary General Kofi Annan. He is Co-Chair of Earth Charter International Council and has written numerous essays on the Earth Charter, available at the Earth Charter website.