of other relevant international bodies and conventions, like those of the UN Framework Convention on Climate Change (UNFCCC) and the Convention on Biological Diversity (CBD). Conference of the Parties The Conference of the Parties (COP) oversees the implementation of the Convention. It is established by the Convention as the supreme decision-making body, and it comprises all ratifying governments. The first five sessions of the COP were held annually from 1997 to 2001. Starting 2001 sessions are held on a biennial basis interchanging with the sessions of the Committee for the Review of the Implementation of the Convention (CRIC), whose first session was held in 2002. List of COP Committee on Science and Technology The UN Convention to Combat Desertification has established a Committee on Science and Technology (CST). The CST was established under Article 24 of the Convention as a subsidiary body of the COP, and its mandate and terms of reference were defined and adopted during the first session of the Conference of the Parties in 1997. It is composed of government representatives competent in the fields of expertise relevant to combating desertification and mitigating the effects of drought. The committee identifies priorities for research, and recommends ways of strengthening cooperation among researchers. It is multi-disciplinary and open to the participation of all Parties. It meets in conjunction with the ordinary sessions of the COP. The CST collects, analyses and reviews relevant data. It also promotes cooperation in the field of combating desertification and mitigating the effects of drought through appropriate sub-regional, regional and national institutions, and in particular by its activities in research and development, which contribute to increased knowledge of the processes leading to desertification and drought as well as their impact. The Bureau of the CST is composed of the Chairperson and the four Vice-Chairpersons. The chairman is elected by the Conference of the Parties at each of its sessions with due regard to ensure geographical distribution and adequate representation of affected Country Parties, particularly those in Africa, who shall not serve for more than two consecutive terms. The Bureau of the CST is responsible for the follow-up of the work of the Committee between sessions of the COP and may benefit from the assistance of ad hoc panels established by the COP. The CST also contributes to distinguishing causal factors, both natural and human, with a view to combating desertification and achieving improved productivity as