The paper that is the basis for the article and which it cites in the second paragraph (https://www.nature.com/articles/s43247-024-01446-z https://www.nature.co

The paper that is the basis for the article and which it cites in the second paragraph (https://www.nature.com/articles/s43247-024-01446-z https://www.nature.com/articles/s43247-024-01446-z) uses time series data going back to 1985 (https://www.nature.com/articles/s43247-024-01446-z/figures/3 https://www.nature.com/articles/s43247-024-01446-z/figures/3). And the study looks at a large number of streams within the Brooks Range, not a "specific river". And it makes a strong case that the changes are due to climate change-related permafrost thaw.