The article covers the problem of ecological neologisms which mostly appear in the present-day media discourse space and actively function there by making a significant impact on people's environmental worldview. Moreover, the research also raises the problem of neologisms as an effective educational instrument for raising human ecological awareness. A comparative analysis of the most popular neologisms circulated in the Russian, British and American media discourse space is introduced in the study. Finally, it is suggested that green neology in its close correlation with media ecology provide a foundation for building and developing a new ecosystemic society with more sustainable ideology towards the future of the planet. © The Authors, published by EDP Sciences, 2020.