The United Nations’ International Day for the Preservation of the Ozone Layer is celebrated on the 16th September every year. Commemorating the 1987 signing of the Montreal Protocol on Substances that Deplete the Ozone Layer, the day advocates activities that create awareness on topics related to climate change and ozone depletion.

Beijing will suspend construction of major public projects in the city this winter in an effort to improve the capital’s notorious air quality, citing the municipal commission of housing and urban-rural development.All construction of road and water projects, as well as demolition of housing, will be banned from Nov. 15 to March 15 within the city’s six major districts and surrounding suburbs.