The Agreement contains a number of general obligations applicable to all Parties, while specific obligations apply only to the industrialised countries listed in Annexes I and II. The Convention recognizes the existence of other international conventions governing greenhouse gas emissions; In particular, it provides that the obligations under the Convention do not apply to greenhouse gases already controlled by the Montreal Protocol. The principle of common but differentiated competences is also the principle of the fulfilment of the general obligations referred to in Article 4(1). The regular establishment and updating of national greenhouse gas emission inventories provides a scientific basis for future planning and the achievement of the long-term objective of the Convention. Other general commitments are long-term national planning, dissemination of technologies and emission control processes, preservation of wells, cooperative planning for adaptation and adaptation of environmental policy, systematic monitoring and development of data archives, exchange of information and promotion of education, training and public awareness. The industrialized countries listed in Annex I undertake to limit anthropogenic greenhouse gas emissions in order to return individually or collectively to 1990 levels. They are subject to stricter reporting requirements than developing countries and must coordinate relevant economic and administrative instruments that contribute to increasing greenhouse gas emissions (e.g. B energy subsidies and prices) and regularly review their policies (Article 4(2)).