Ministry calls for ozone layer-safe inventions

Ministry of Environment senior officials yesterday urged people, especially students, to invent substances to replace those which harm the ozone layer. The call was made during a workshop on “The Implementation of Montreal Protocol on Substances that Deplete the Ozone Layer in Cambodia” held at the ministry. …

Pech Sotheary
https://www.khmertimeskh.com/50529991/ministry-calls-for-ozone-layer-safe-inventions/