西气东输
west-east gas transmission

据国家管网集团介绍，自2004年正式投产以来,西气东输工程输气量已累计输送天然气超7000亿立方米。2021年，西气东输管道系统累计输送天然气首次突破1000亿立方米。
The west-to-east gas pipeline has sent more than 700 billion cubic meters of natural gas to eastern China since it was officially put into operation in 2004. In 2021, the annual volume of natural gas transported by the pipeline has, for the first time, exceeded 100 billion cubic meters, according to PipeChina.

西气东输项目输气量折合替代标煤9.32亿吨，减少二氧化碳排放10.2亿吨、粉尘5.08亿吨，相当于种植31.8亿公顷阔叶林。
Over the past years, the project has reduced the use of approximately 932 million tonnes of standard coal and cut carbon dioxide emissions and dust by 1.02 billion tonnes and 508 million tonnes, respectively, which is equivalent to adding 3.18 billion hectares of broad-leaved forests.