The hole in the Earth's ozone layer is expected to fully heal within 50 years, climate change experts predict in a new UN report.
원문출처 : https://www.cnn.com/2018/11/06/health/ozone-healing-scli-intl/index.html
원문출처 : https://www.cnn.com/2018/11/06/health/ozone-healing-scli-intl/index.html