Page 18 (e) carry out a permanent exchange of information and documentation and establish Community data networks and data banks; (f) develop joint programmes for training scientific and technological cadres, including the training and further training of skilled manpower; (g) promote exchanges of researchers and specialists among Member States in order to make full use of the technical skills available within the Community; and (h) harmonize the educational systems in order to adapt better educational, scientific and technical training to the specific development needs of the West African environment. Article 28 Energy Member States shall coordinate and harmonize their policies and programmes in the field of energy. To this end, they shall: (i) ensure the effective development of the energy resources of the region; (j) establish appropriate cooperation mechanisms with a view to ensuring a regular supply of hydrocarbons; (k) promote the development of new and renewable energy particularly solar energy in the framework of the policy of diversification of sources of energy; (l) harmonize their national energy development plans by ensuring particularly the inter­ connection of electricity distribution networks; (m) articulate a common energy policy, particularly, in the field of research, exploitation, production and distribution; (n) establish an adequate mechanism for the collective solution of the energy development problems within the Community, particularly those relating to energy transmission, the shortage of skilled technicians and financial resources for the implementation of energy projects of Member States. CHAPTER VI: COOPERATION IN ENVIRONMENT AND NATURAL RESOURCES Article 29 Environment Member States undertake to protect, preserve and enhance the natural environment of the region and cooperate in the event of natural disasters. To this end, they shall adopt policies, strategies and programmes at national and regional levels and establish appropriate institutions to protect. preserve and enhance the environment, control erosion, deforestation, desertification, locusts and other pests.