Former US energy secretary Steven Chu once described energy efficiency as “not just low-hanging fruit” but “fruit that is lying on the ground”. Yet despite being cost-effective, this critical method of decarbonisation is widely underused.
前美国能源部长朱棣文(Steven Chu)曾形容能效提升“不只是低挂的果实，而是掉在地上的果实”。然而，尽管具有成本效益，但这一关键减碳方式仍然远未得到充分应用。
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