在国际法“碎片化”的背景下,气候变化单边措施涉及不同类别的国际法与国际自足体制。在审查欧盟航空指令的有效性时,欧盟法和世贸组织法律制度有明显不同的利益偏好。为消除体制间的冲突,更为现实的态度是,应承认国际自足体制的多样性和独立性。利用体制间的对话和相互适应来缓解贸易与环境之间的紧张关系。 In the context of international law “fragmentation ”, unilateral measures on climate change cover different categories of international law and the system of international self-determination. In examining the validity of EU aviation directives, EU law and the WTO legal system have distinctly different preferences. To eliminate conflicts between systems, it is more realistic to recognize the diversity and independence of an international self-contained system. Use institutional dialogue and mutual adaptation to ease tensions between trade and the environment.