人不说得再清楚不过了吗？

来源: 于 2022-10-10 10:24:06 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

Feedstock and fuel, the gray bars represent upstream emissions associated with producing gasoline or electricity (U.S. mix). 

 Vehicle in use, yellow bar shows tailpipe emissions during vehicle operations.