Analysis of information sources in references of the Wikipedia article "温室气体排放" in Chinese language version.
<ref>标签用不同内容定义了多次<ref>标签用不同内容定义了多次... According to the EPA, approximately one ounce of carbon dioxide is emitted for each ounce of polyethylene (PET) produced. PET is the type of plastic most commonly used for beverage bottles. ...'
previous redirect from web.worldbank.org
... According to the EPA, approximately one ounce of carbon dioxide is emitted for each ounce of polyethylene (PET) produced. PET is the type of plastic most commonly used for beverage bottles. ...'
previous redirect from web.worldbank.org
<ref>标签用不同内容定义了多次