All papers published in this volume of IOP Conference Series: Earth and Environmental Science have been peer reviewed through processes administered by the Editors. Reviews were conducted by expert referees to the professional and scientific standards expected of a proceedings journal published by IOP Publishing. • Type of peer review: Double-review and non-blind. There were two rounds of reviews conducted by ICEEG 2020. The first round is the preliminary examination, which checks the quality and the scope of the submissions. The second round is professional review. Two experts in related research fields gave professional review on the submissions and put forward suggestions for revision. At last, the accepted submissions received the acceptance notice. • Conference submission management system: All submissions are required to send by email to iceeg2020@163.com, oversaw by Zhuo Wang (wangzhuo18@mail.jlu.edu.cn) Jing Li (inter_lijing@jlu.edu.cn) • Number of submissions received: 213 • Number of submissions sent for review: 165 • Number of submissions accepted: 159 • Acceptance Rate (Number of Submissions Accepted / Number of Submissions Received X 100): 74.6% • Average number of reviews per paper: 2 • Total number of reviewers involved: 38 • Any additional info on review process: • Contact person for queries: (please include name, affiliation and email address) Professor Qi Lu College of Geo-Exploration Science and Technology, Jilin University luqi@jlu.edu.cn