To characterize achieving a decarbonized global energy system as “challenging” is a heroic understatement. One key challenge is doing this globally, for countries with wildly diverse energy resource options and varying levels of existing infrastructure and societal readiness to support low-carbon energy systems. Another important challenge is decarbonizing all economic sectors, not just single sectors (e.g., transportation or electric power).

中文翻译：

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更加关注全球低碳未来

将实现脱碳的全球能源系统描述为“具有挑战性”是轻描淡写的。对于拥有丰富多样的能源选择，现有基础设施水平不一，社会准备支持低碳能源系统的国家而言，一项全球性挑战是一项挑战。另一个重要的挑战是使所有经济部门脱碳，而不仅仅是单个部门（例如运输或电力）。