The purpose of the article is to develop priority directions for the formation of an economic mechanism for nature management, taking into account the set of requirements set forth by the new global environmental architectonics. It is substantiated that the new global environmental architectonics is based on the following: The Global Sustainable Development Goals approved by the United Nations; the New Climate Agreement approved in Glasgow (UK); and the European Union's carbon adjustment of imports of third-country products with a view to achieving carbon neutrality indicators on the European continent. The relevance of this research topic stems from the need to identify the determining influence of the basic provisions of international environmental conventions on the specification of methods, instruments and levers of the domestic economic mechanism of environmental management. It is established that the transformation of the national economic mechanism of environmental management in the short and medium term should be determined to the greatest extent by the Global Sustainable Development Goals, which relate to clean water and adequate sanitation, renewable energy, sustainable development of cities and communities, responsible consumption, climate change, and the conservation of marine and terrestrial ecosystems. It is substantiated that the basic provisions of the New Climate Agreement should correlate with the priorities for modernizing fiscal regulation of environmental management in terms of stimulating the processes of minimizing greenhouse gas emissions. It is proved that in order to minimize the losses of domestic producers exporting products to the European Union because of the application of the adjustment mechanism border carbon from 2023, it is necessary to apply a set of preventive measures, in particular by stimulating the implementation of low-carbon development projects.