摘要
The world's first known Olympics games took place some 3000 years ago.The historical carbon footprint-a measure of the amount of carbon dioxide released into the atmosphere because of a defined set of activities–is not known,but the current emissions represent no small number.According to the International Olympic Committee1.
基金
The authors gratefully acknowledge financial support from the EnvironmentalDefense Fund Beijing RepresentativeOffice.We gratefully thank the support from the General Planning Department and the Sustainability Advisory Commission of the Beijing 2022 Organizing Committee.Heartfelt thanks are extended to the Bureau of Ecology and Environment of Beijing Municipality,the Bureau of Ecology and Environment of Yanqing District,relevant enterprises and experts for their assistance in the research,discussion,and data collection.
