因在全球范围内已有32国家参与了低碳交易计划，为统一这些不同国家的努力我们将在某一天需要一个单一的碳商品价格。
Because with 32 countries now participating in low-carbon trading schemes around the world, we will one day need a single commodity price for carbon to unify these diverse national efforts.
因在全球范围内已有32国家参与了低碳交易计划，为统一这些不同国家的努力我们将在某一天需要一个单一的碳商品价格。
Because with 32 countries now participating in low-carbon trading schemes around the world, we will one day need a single commodity price for carbon to unify these diverse national efforts.
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