Research4 sources
Toxic secrets are hiding in Arctic ice
Science News · By Katherine Kornei ·
The Brief · written from 4 sources
- Ice cores from Greenland, northern Canada and the Russian Arctic record arsenic, lead and other heavy metals linked to early 20th-century copper production.
- Emissions from the Anaconda Copper Mine complex near Butte, Montana, about a century ago were carried by winds over the Arctic and deposited by storms.
- The study is published in Nature Sustainability on 10 November 2026.
Why it matters
The findings tie a historic industrial source to widespread heavy-metal deposition far from its origin, and the Nature Sustainability paper links it to health burdens, which matters for how past pollution is assessed in environmental and health research.
Who’s affected
- environmental scientists and climate researchers
- public health researchers studying heavy-metal exposure
- historians of mining and industrial pollution
- #arsenic
- #ice cores
- #air pollution
- #copper smelting
- #heavy metals
- #arctic
Toxic metals can harm human health. Arctic ice cores trace arsenic, lead and other heavy metals to historic mining and smelting in Montana.
Timeline
Study published online in Nature Sustainability (doi:10.1038/s41893-026-01975-9)
nature.com
Widespread North American pollution and health impacts from early twentieth century copper production
Science News
Toxic secrets are hiding in Arctic ice
Earth News - Earth Science News, Earth Science, Climate Change
Ice core records uncover widespread air pollution from early 20th-century copper production
Eos
Scientists Traced Arctic Arsenic Back to a Montana Mine
Full coverage · 4 sources
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Earth News - Earth Science News, Earth Science, Climate Change
Ice core records uncover widespread air pollution from early 20th-century copper production - 4h ago ↗
Science News
Toxic secrets are hiding in Arctic ice
- 14h ago ↗