Volunteers have removed three tonnes from the world's highest mountain as part of a clean up operation to remove trash that has accumulated at altitude.
원문출처 : https://www.cnn.com/2019/05/02/asia/mount-everest-trash-cleanup-scli-intl/index.html
원문출처 : https://www.cnn.com/2019/05/02/asia/mount-everest-trash-cleanup-scli-intl/index.html