Alabama NewsCenter — Auburn University-led study shows ancient cities also dealt with toxic pollution

By Paul Hollis
Auburn University

The negative impact humans have on their environment is constantly on display, with climate change, land alterations and harmful algal blooms affecting people’s lives daily.

But this isn’t an entirely new phenomenon, according to a recent study published in the Proceedings of the National Academy of Sciences, or PNAS, by Auburn University paleolimnologist Matthew Waters. PNAS is the official journal of the National Academy of Sciences and one of the world’s most cited and comprehensive multidisciplinary journals.

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