Why Today's Fish Mercury Limits Are Calibrated to a Moving Baseline — page updateshttps://heavymetalcertified.com/articles/climate-fish-mehg-projectionsPublished revisions of this Heavy Metal Certified page.Why Today's Fish Mercury Limits Are Calibrated to a Moving Baselinehttps://heavymetalcertified.com/articles/climate-fish-mehg-projectionshttps://heavymetalcertified.com/articles/climate-fish-mehg-projections#revision-0c3b3e4e682f16a6Mon, 21 Sep 2026 04:04:58 GMTClimate warming is projected to raise methylmercury in marine fish 5 to 30 percent by 2100, so fixed regulatory mercury limits lose stringency over time.