一场围绕航空‘碳税’的贸易战将难以避免。
It will be difficult to avoid a trade war focused on a ' carbon tax ' for airlines .
中国已警告欧盟（EU）放弃征收有争议的、针对航空公司的碳排放税，否则就有引发全球贸易战的风险。
China has warned the European Union to abandon its controversial carbon tax on airlines or risk provoking a global trade war .
航空碳税