Spanish Polluted Air Long Before Industrial Revolution | Hacker News

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		Spanish Polluted Air Long Before Industrial Revolution (laboratoryequipment.com)
		11 points by ryan_j_naughton on Feb 10, 2015 \| hide \| past \| favorite \| 1 comment

iwwr on Feb 10, 2015 [–]

Wood burning creates quite a bit of indoor pollution. It gets worse for people living where there aren't much trees, who resort to burning dung.

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