CO2 emissions are one of the main causes of the global problem of climate change, the solution to which requires the efforts of every country. One of the main polluters is the energy sector, which includes transport. Despite the seemingly small share of aviation in emissions, its role as a polluter and CO2 emitter cannot be underestimated due to calculated specific rate and a number of factors that were researched. The purpose of this study was to analyze the aviation share in the polluters’ structure and to study if Covid-19 restrictions influence on it, to investigate the share of CO2 emissions from air transport in Ukraine and to assess its impact, to forecast CO2 emissions in Ukraine by 2030 and to build scenarios of possible changes in the direction of decarbonization in the aviation industry. Analysis and synthesis, comparison, methods of pairwise regression and modelling scenarios were used for solving these tasks. The results show that the aviation industry could achieve the carbon reduction targets only by applying different types of carbon pricing with conducting the research and development in the sphere. The last significant improvement in aircraft design technologies and flight operations was achieved almost 60 years ago. Economic incentives at the international and local scales should be used to stimulate aviation manufacturers to invest significant money on R&D to find stable solutions to achieve decarbonization. Development of Ukrainian aviation industry should not stand aside from global trends and must meet modern challenges, including environmental issues. The created scenarios show solutions to achieve decarbonization goals that align with EU best practices.

The article conducted a study on approaches to the strategy of sustainable development of transport systems on the example of air transport in Ukraine. The shortcomings of the main tool of their strategy, namely the methods of classical forecasting, which limit its application, are revealed. The methods of forecasting based on expert judgment and classical methods of forecasting containing congenital pathology of errors are considered. Therefore, long-term factors and trends are identified, which remains a classic forecast, rather than building long-term forecasts of the national economy. To implement the stage of strategic planning of transport systems used the concept of sustainable development, which includes stages of identification through integrated assessment in the measurement of safety and strategy by defining goals, building the desired trajectory and decomposition of integrated indices through adaptive control methods of management theory. Three scenarios for the development of air transport in Ukraine have been developed: realistic - 3.8%; optimistic -7.0% and balanced - increase in gross value added (GVA) by 11.7% with scientific substantiation of quantitative values of indicators and key macroeconomic indicators, which guarantees the desired trajectory of sustainable development, and monitoring their implementation determines the effectiveness of public policies and actions.

The state and strategic scenarios to recover the sustainable development of air transport in Ukraine in the post-war period are studied. Research is fulfilled with the scientific justification of quantitative indicators and macro-indicators of maintaining the trajectory of sustainable development in the medium-term perspective. The starting point of strategizing is the concept of sustainable development in the safety dimension as a management construct that contains a general systemic view of the ways to transfer from the current state of the management object to the desired one and includes the stages of identification and strategizing. Identification involves an integral convolution with dynamic weighting coefficients and a formalized justification of the limits of safe existence. A new methodology is used for strategizing, which, unlike classical forecasting methods (the past determines the future), uses the principle "the future is determined by the trajectory into the future" and is based on the method of adaptive regulation from the management theory. According to the defined methodology, three strategic recovery scenarios were developed with the annual rates of growth of real aviation transport: realistic – 4.5%; optimistic – 7.2% and the scenario of entering the optimal zone of the EU countries – 10.4%. The resulting dynamics of components, indicators and macro indicators is, in fact, a strategic plan for the post-war recovery of the economy and entering the path of sustainable development. Threats are identified and institutional measures are proposed for airlines and national systems of airports and airfields, air navigation services, aviation industry, aviation education and science of Ukraine. The strategic orientations of the environmentalization of air transport of Ukraine in the post-war period and the strategic priorities of the recovery of the air transport infrastructure were formulated, and the necessity to pursue a course towards carbon neutrality was proved.

The UN's global strategic document is the 2030 Agenda for Sustainable Development. It is an action plan aimed at ensuring global sustainable development in economic, social and environmental directions, which ensures that no UN member country is left behind. The 17 Sustainable Development Goals in the 2030 Agenda can be used as guidelines for the coordinated development of UN member states. Every year, the number of countries that also connect aviation to a wider range of UN Sustainable Development Goals, such as 4, 8, 9, 11, 13, 14, 16 and 17, is increasing. At the same time, the achievement of these goals requires working out the theoretical foundations of strategic management of global civil aviation safety. The issue of aviation safety is one of the top priority challenges from the first day of flights. Years passed, technology, avionics, engines, navigation aids changed and developed, but the problem did not lose its relevance. ICAO's purpose: to ensure the safe and orderly development of all aspects of international civil aviation. ICAO develops Standards and Recommended Practices. They are set out in 19 Annexes to the Convention on International Civil Aviation. ICAO's new strategies are the basis for further sustainable development of global civil aviation.

International scientific and technological cooperation in the aviation sector plays a decisive role for the transfer, use and production of knowledge, contributes to the innovative development of aviation, in particular the emergence of new types of aircraft, new business models of international airlines, modernization of airport infrastructure, reduction of the impact of aviation on the environment and increase security. The main reasons for the rapid development of the world technology market in the field of aviation are the unevenness of the economic development of countries, the monopolization of aircraft construction by large companies that are able to finance the conduct of valuable research and design works, the strengthening of competition in the world market of air transport, etc. Within the scope of the scientific research, the key areas are singled out and the modern system of international scientific and technological cooperation in the aviation sphere is characterized. It has been established that today for Ukraine, international scientific and technological cooperation in aviation acquires extremely important features in the context of the revival of the economy in the war and post-war period. The methodological basis of the research is both general scientific and special methods of scientific knowledge: descriptive-analytical, analysis and synthesis, methods of quantitative and qualitative comparisons. The information base of the article is monographic studies and periodical scientific publications of Ukrainian and foreign economists, materials and analytical reports of international organizations, international consulting companies and analytical centers. Research results can be used for scientific substantiation and further creation of appropriate conditions for the development of international scientific and technological relations, in particular in the aerospace field, ensuring an appropriate system of financing innovations with the involvement of the public and private sectors, funds of international financial institutions, the development of private companies in aerospace industry, substantiation of the mechanisms of military and post-war restoration of the air transport system of Ukraine.

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Global air transport is an open system that is influenced by a large number of factors, both related and unrelated. One of its most vulnerable components is the activity of airlines. This is especially felt during the period of hostilities. The Malaysian Airlines Boeing 777 crash as a result of being hit by a Russian missile and the 2014 Boeing 737 crash of Ukraine International Airlines in Iran as a result of being hit by Iranian anti-aircraft missiles in 2020 are examples of the vulnerability of civil aviation in the rapidly changing conditions of military operations and determine the need for anticipatory risk management of airlines. Unfortunately, the full-scale military aggression of the Russian Federation against Ukraine from the first minute dealt a devastating blow to the activity of air transport in general, and to the activity of Ukrainian airlines, in particular. In order to formulate strategic scenarios for the post-war recovery and sustainable development of air transport of Ukraine, the article proposes to use the Concept of National Integrated Risk Management of Air Transport of Ukraine.

Multimodal transportations plays a huge role in global economy. A lot of manufactures require different components, located in different remote sectors. In order not to discontinue production processes, multimodal transportation is used. Especially, the war influenced on the whole multimodal transportation system in Ukraine. Ports, harbors and sea ports stopped it’s further operation. The main role was fallen on road transportation. A plenty of airports were totally destroyed, the most of main harbor became in occupation, it’s further operation is impossible until the full victory of Ukraine. The road transportation became as the save link for supply chains and further economy operating. The one of the main problems in this situation is choosing of the optimal way and best-suited carrier for sequel carriage. The truck corporations continue cooperating with the airline agents, but the basic hubs of them were moved to the neighbor countries, it can appear new questions for optimization the delivery. Such factor as price, quality of the services, distance and time always plays a huge role in supply chains. The main aim of the transport company and its staff during multimodal transportation is to provide the delivery of goods, that were ordered by the manufacture just in time providing it’s safe and integrity. For optimization of all this factors according to the consignee’s preferences the expert evaluation methods are used in given research. There are lot of additional services attracted in such cases, such as: loading, unloading, repacking, changing the kind of packing (boxes, pallets, container repacking and other), in which sub-contractors take part. The union of all this processes mentioned above gives the opportunity to create the whole system of supplying the good from its seller to buyer. Every process is unique depending on the current situation and terms of delivery.