Unveiling the hidden carbon footprint of the tourism industry: a comprehensive analysis and policy implications
采用多区域投入产出模型，估算了2000至2020年全球旅游业的碳排放与区域间流动，发现旅游收入增长是排放增加的主因，但碳强度下降有所抵消，并导致区域间GDP与碳流不平衡。
In the context of addressing climate change, carbon emissions and leakages from the tourism industry have received wide attention. In this study, we adopted a Multi-Regional Input Output model to estimate tourism carbon emissions and flows between regions for the global tourism industry from 2000 to 2020. Subsequently, a Structural Decomposition Analysis was conducted to analyze the contribution of the determinant factors of tourism emissions in each region. The results indicate that the embodied carbon emissions of tourism grew by approximately 20% from 2000 to 2019, mainly due to the growth in tourism revenue, but were somewhat offset by the decline in carbon intensity. Furthermore, tourism leads to imbalanced GDP and carbon flow between regions. Based on the trends and driving factors of carbon emissions in the tourism industry, it is necessary to transform tourism practices and implement coordinated global efforts to eliminate these emissions.