1From: Report on the 19th international symposium on geo-disaster reduction/high-level academic forum on disaster mitigation and integrated risk defense on the Plateau, 12–15 July 2021, Xining, ChinaOpening ceremony. a chaired by Prof. Ningsheng Chen, b welcome speech from Prof. Guangchao Cao, vice president of Qinghai Normal University, and c opening speech by Prof. Fawu Wang, the president of ICGdRBack to article page