Due to the effect of COVID-19, 2021 7th International Conference on Advances in Environment Research (ICAER 2021) was held as virtual meeting during August 26-28, 2021 which has been a great success. On behalf of the organizing committee, we'd like to thank all the keynote speakers, for your interesting and inspiring speeches, and all the authors, who have contribuited your paper to the conference, and your excellent presentations. We hope to see you all next year.

ICAER 2021 Proceedings have been published into Volume 943 of IOP Conference Series: Earth and Environmental Science  and indexed by Scopus.