Construction of Carbon Footprint Measurement Method System for the Sports Industry and Empirical Research Under the Guidance of Green Economy

Against the backdrop of the global green economic transformation and the advancement of the "carbon peaking and carbon neutrality" goals, the sports industry, as one of the high-carbon emission sectors, its low-carbon transformation has become a key to sustainable development. Currently, the carbon footprint measurement of the sports industry faces issues such as ambiguous boundaries, incomplete coverage of links, and insufficient method adaptability, which restrict the formulation of emission reduction strategies. Based on the green economic theory and the principles of industrial ecology, this study focuses on the full-chain carbon emission characteristics of the sports industry and constructs a carbon footprint measurement method system covering "boundary definition—carbon source identification—method integration—indicator quantification—verification and optimization". Through empirical tests on three typical business formats, namely large-scale events, sports goods manufacturing, and fitness services, the study reveals the structural characteristics (e.g., audience transportation accounts for over 30% of emissions in events, and raw material production accounts for over 60% of emissions in sports goods manufacturing) and driving mechanisms of carbon footprints in different business formats. It also verifies the effectiveness of the system in measurement accuracy (with the deviation rate reduced to 3.2%) and practical application, providing a scientific tool and empirical basis for the formulation of low-carbon policies and green transformation of the sports industry.