Banned chemicals which can cause holes in the ozone layer are on the rise, according to a new report, and no one knows who the culprit is.
원문출처 : https://www.cnn.com/2018/05/16/world/ozone-emissions-cfc-intl/index.html
원문출처 : https://www.cnn.com/2018/05/16/world/ozone-emissions-cfc-intl/index.html