皮革制造商 Tanco 使用大量食盐来保存兽皮。

Tanco, a leather manufacturer, uses large quantities of common salt to preserve animal hides.

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虽然存在大量的兽皮——可能是狩猎所得，但没能找到骨锥或骨针，这样就不能证明尼人是否熟练掌握了缝制皮革的技术。

And there are no bone awls or needles that would suggest that Neanderthals were skilled leather workers, despite the abundance of animal skins that their hunting would have provided.

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在此提供一个不错的经验之谈：高科技产品诸如电子之类的都还不错，而皮革和玻璃制品则会制造大量的污染。

Here's a decent rule of thumb: High-tech products like electronics usually aren't so bad, while products like leather and glass tend to be associated with a lot more pollution.

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