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Climate Change Threatens Micronutrients Essential for Marine Life

10/23/2025

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Summary

Story summary

A UC San Diego-led study by Scripps Institution of Oceanography finds climate-change-driven glacial retreat in Alaska may reduce essential micronutrients in meltwater.
Researchers find that meltwater from the Northwestern Glacier has lower levels of iron and manganese than meltwater from the stable Aialik Glacier.
The nutrients fuel phytoplankton, potentially affecting marine biodiversity and fisheries, prompting researchers to call for further study.

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Story summary

A UC San Diego-led study by Scripps Institution of Oceanography finds climate-change-driven glacial retreat in Alaska may reduce essential micronutrients in meltwater.
Researchers find that meltwater from the Northwestern Glacier has lower levels of iron and manganese than meltwater from the stable Aialik Glacier.
The nutrients fuel phytoplankton, potentially affecting marine biodiversity and fisheries, prompting researchers to call for further study.