Recent research reveals that microalgae in the Southern Ocean absorb far more CO₂ than scientists previously believed. This groundbreaking study, which analyzed ancient DNA, highlights the crucial role these tiny organisms play in regulating our planet’s atmosphere.
Ancient DNA Sheds Light on Past Climate
About 14,000 years ago, massive algal blooms in the Southern Ocean helped dramatically lower global carbon dioxide levels. By examining ancient DNA, researchers uncovered evidence that these microalgae acted as a powerful carbon sink during key periods in Earth’s history.
Implications for Climate Change Solutions
Understanding the role of microalgae in CO₂ absorption opens new possibilities for climate change mitigation. These findings suggest that protecting and promoting healthy microalgae populations could enhance the ocean’s natural ability to capture carbon.
Scientists emphasize that further study could unlock even more potential in using natural processes to combat rising greenhouse gases. The Southern Ocean remains a vital but understudied region in the global carbon cycle.
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