Global tourism accounts for 8% of total worldwide greenhouse gas emissions, four times more than previously believed, new research says.
원문출처 : https://www.cnn.com/2018/05/07/health/global-tourism-carbon-footprint-study/index.html
원문출처 : https://www.cnn.com/2018/05/07/health/global-tourism-carbon-footprint-study/index.html