气候变化将会使二者关系进一步复杂化，使人类陷入进退两难的困境——在确保安全的基础上，各国如何做到维护气候系统和完成能源指标之间的平衡。

Climate change is expected to complicate this relationship still further, presenting us with a Shared dilemma about how to balance our climate and energy objectives while preserving security.

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