摘要
Editorial The idea for a world day for water was proposed in 1992,the year that the United Nations Conference on Environment and Development in Rio de Janeiro took place.That same year,the United Nations General Assembly adopted a resolution by which March 22 of each year was declared World Day for Water,to be observed starting in 1993.Since then,March 22 became an international day that focuses on the importance of freshwater.The theme of World Water Day 2020 is about water and climate change and how the two are inextricably linked.
