Last date for submission of paper: unknown; Contact person: Krzysztof Sornek; International Conference on the Clean Environment and Energy Research (CEER2020) is an event adressed to scientists, professional engineers, social workers, policy makers and other stakeholders from all over the world. It gives them the opportunity to present and publish their work, discuss and exchange ideas and knowledge. Moreover, it is a network for future collaborations. The main goal of the conference is to present and discuss the latest advances in research related to clean environment and energy from technical, economic, social and political aspects.