Ancient ice and modern pollution combine to spread antibiotic resistance as glaciers melt

Ancient ice and modern pollution combine to spread antibiotic resistance as glaciers melt

Glaciers harbor both ancient and human-derived antibiotic resistance genes, preserved in ice and increasingly mobilized by climate-driven melt. This global review proposes a glacier-to-downstream “continuum” to understand how resistance genes may move through connected freshwater ecosystems.

Melting glaciers contribute to antibiotic resistance spread

As global warming accelerates the melting of glaciers, researchers are sounding alarms about the potential spread of antibiotic resistance. A recent study published in the journal Biocontaminant synthesised data from over 1,000 studies, revealing that glaciers act as reservoirs for both ancient resistance traits and modern pollution. The study introduces a “glacier continuum” framework to track the spread of antibiotic resistance genes (ARGs) fr…