Southern Ocean may flip from carbon sink to carbon source under mitigation scenarios

Written and edited by the WorldPing NewsdeskPublished Updated Original reporting: Phys.org
Southern Ocean may flip from carbon sink to carbon source under mitigation scenariosWorldPing
Image via Phys.org.

What happened

Plans to limit the global temperature rise to 1.5°C above preindustrial levels depend on reaching net-zero emissions and, in many cases, actively removing carbon dioxide (CO2) from the air.

Key facts

  • Plans to limit the global temperature rise to 1.5°C above preindustrial levels depend on reaching net-zero emissions and, in many cases, actively removing carbon dioxide (CO2) from the air.
  • Reported by Phys.org and published Sat, 12 Sep 2026 17:20:01 UTC.

Why it matters

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  • Peer review status and replication of the findings
  • Mission milestones and next scheduled attempt
  • Funding or policy decisions that follow

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  1. Tiny cyanobacteria may be the secret heroes of ocean carbon sequestration

  2. Southern Ocean may flip from carbon sink to carbon source under mitigation scenarios

Sources

The original report was published by Phys.org. WorldPing does not claim that reporting — this page summarises and contextualises it.

Read the full report at Phys.org

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Tiny cyanobacteria may be the secret heroes of ocean carbon sequestrationWorldPing
Phys.org

Tiny cyanobacteria may be the secret heroes of ocean carbon sequestration

A process known as the biological carbon pump (BCP) moves organic carbon from near the ocean's surface to the ocean floor. That carbon often stays there for hundreds or thousands of years, making the BCP a primary source of carbon sequestration in the oceans.

Brief by WorldPing · Original reporting by Phys.org