The article covers main reasons of emerging a new type of economy, the "green" economy. The aims and objectives of developing green economy were analyzed. The significance of an economy reform carried out on both national and global levels was evaluated. We analyzed both speed and level of the green economy development in the world and in the most developed countries of the world. An influence of institutional and investment factors on the process of greening economy was studied. The authors

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... luated an influence of scientific and technical researches on transition of economy to its new model. An influence of leading countries, economical global leaders, on greening interstate and global economy was reviewed and analyzed. Possible perspectives of the global green economy development and consequences of greening process are given. The article determines factors that influence on the level of economic and social prosperity and welfare of society. The authors show negative consequences of the existing economic model that influence the society level of living, poverty, prosperity and welfare. It is proved by Japan experience that contributions into development of "green" economy sectors and R&D works promote greening food, influence welfare of society and life expectancy. A conclusion was made that transition to green economy will favorably influence health level of any nation and increase factors that promote development of social and economic prosperity and welfare of society in general.