请问SCOPE3的缺点或者挑战是什么呢

嗨，努力学习的PZer你好：

是的，范围3排放，即公司价值链内的间接排放，由于供应链各层可能缺乏数据、透明度和披露，特别难以衡量。（且容易重复计算）

Scope 3 emissions, which represent indirect emissions that occur within a company’s value chain, are particularly difcult to measure because of the potential lack of data, transparency, and disclosure within layers of a supply chain.

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虽然现在很辛苦，但努力过的感觉真的很好，加油！