The 2021 International Conference on Resources, Environment and Green Economy (CREGE 2021) will be held in Dalian, China from 24th to 26th September 2021. CREGE 2021 is an international forum for researchers to present their latest research and development results in all areas of  Resources, Environment, and Green Economy. Conference topics mainly include but are not limited to Land Economics, Energy Conservation, and Environmental Protection, Low Carbon Economy, Sustainable Development, etc. CREGE 2021 welcomes all high-quality research papers and presentations from related research fields.  Due to the pandemic of Covid-19, the conference will be a hybrid event combining both in-person and virtual experiences.