The article considers modern tendencies in tourism development and analyzes the existing approaches to greening tourism; ecological problems of managing tourism development in Ukraine. The article aims at substantiating scientifically and theoretically the prospects for developing the national tourism market in Ukraine, taking into account the environmental factor. To attain the aim, the following general scientific and special methods were used: analysis and synthesis were used to study the scientific principles of tourism development; statistical analysis, comparison and generalization helped us to study the impact of environmental factors on the tourism market development in Ukraine. The authors draw attention to the need to increase the level of environmental safety of travelling in accordance with the sustainable development criteria. It is determined that greening tourism is a consistent implementation of the ideas within the "green" economy paradigm and international experience in nature conservation and sustainable environment in environmental legislation, recreational tourism, regional management, development of "green" technologies, environmental education and recreational nature management. The main directions of greening tourism at the macro- and micro-levels have been identified by analyzing the state of the environment and the tourism industry in Ukraine. Thus, the authors believe that an ecologically safe tourist product should include the following points: environmentally friendly transportation, food consumption, garbage collection and processing throughout the journey; environmentally friendly building materials used for tourist accommodation; participation of tourism business entities in solving environmental problems in the region