Evidence map›Paper›PMID 40920934›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2025

Wild, scenic, and toxic: Recent degradation of an iconic Arctic watershed with permafrost thaw.

Patrick F Sullivan, Roman J Dial, David J Cooper, Charles Diamond, Christopher J Tino, Daniel D Gregory, Russell E Wong, Timothy W Lyons

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

  1. Article
  2. Rust never sleeps: Climate change, permafrost thaw, and the rapid environmental degradation of wilderness river ecosystems.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors.

Patrick F SullivanUniversity of Alaska Anchorage, Environment and Natural Resources Institute, Anchorage, AK 99508.ORCID 0000-0002-8015-3036
Roman J DialAlaska Pacific University, Institute of Culture and Environment, Anchorage, AK 99508.ORCID 0000-0002-8189-7248
David J CooperColorado State University, Department of Forest and Rangeland Stewardship, Fort Collins, CO 80523.ORCID 0000-0003-3391-3538
Charles DiamondUniversity of California, Department of Earth & Planetary Sciences, Riverside, CA 92521.
Christopher J TinoColorado State University, Department of Forest and Rangeland Stewardship, Fort Collins, CO 80523.
Daniel D GregoryUniversity of Toronto, Department of Earth Sciences, Toronto, ON M5S, Canada.
Russell E WongAlaska Pacific University, Institute of Culture and Environment, Anchorage, AK 99508.ORCID 0000-0003-2605-953X
Timothy W LyonsColorado State University, Department of Forest and Rangeland Stewardship, Fort Collins, CO 80523.

Funding

National Science Foundation (NSF) OPP-2325290National Science Foundation (NSF) OPP-2325291
6 · The paper itself

Abstract

The streams of Alaska's Brooks Range lie within a vast (~14M ha) tract of protected wilderness and have long supported both resident and anadromous fish. However, dozens of historically clear streams have recently turned orange and turbid. Thawing permafrost is thought to have exposed sulfide minerals to weathering, delivering iron and other potentially toxic metals to aquatic ecosystems. Here, we report stream water metal concentrations throughout the federally designated Wild and Scenic Salmon River watershed and compare them with United States Environmental Protection Agency (EPA) chronic (4-d) exposure thresholds for toxicity to aquatic life. The main stem of the Salmon had elevated SO

Indexed as

PermafrostRiversWater Pollutants, ChemicalAlaskaAnimalsArctic RegionsEcosystemEnvironmental MonitoringSalmonWater Pollutants, Chemicalacid rock drainageaquatic toxicitysalmon

Identifiers

PMID40920934
PMCPMC12452937

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.