On the morning of April 22, a knowledge promotion and consultation activity for the Earth Day was carried out in front of the office building of Miyu Office. This year is the 41st World Earth Day on the theme of "cherishing earth resources, transforming development mode and advocating low-carbon life". In the activity, staffs of the Office introduced the knowledge related to the World Earth Day and the International Earth Year. Moreover, they also distributed 500 copies of promotional materials to the public based on the practical situations of Miyun, promoted knowledge related to land and resources laws and geographic disasters among cadres in counties, townships and villages, and accepted consultation from citizens. These activities enhance the public's recognition of national situations and county situations, as well as their recognition of important position of geosciences in sustainable development, utilization and management of resources as well as anti-disaster and disaster relief.