Paper Publishing： For papers submitted to ICBEM 2021, after the peer reviewing process by at least 2-3 experts, all the accepted papers will be published into E3S Web of Conferences (Open Access proceedings in Environment, Energy and Earth Sciences) which is indexed by Ei Compendex, Scopus, Google Scholar, CAS, DOAJ, CPCI (Web of Science), EBSCO, ProQuest. About 10% excellent papers with extension will be recommended to publish in International Journal of Environmental Science and Development (IJESD, ISSN:2010-0264), and all papers will be indexed by Scopus and included in the Chemical Abstracts Services (CAS), CABI, Ulrich Periodicals Directory, Electronic Journals Library, Crossref, ProQuest.