How Oceans Help Regulate Global CO₂ Levels" #CarbonSequestration #OceanScience #ClimateAction

The ocean plays a pivotal role in the global carbon cycle, acting as both a reservoir and regulator of carbon dioxide (CO₂), a greenhouse gas influencing Earth's climate. Covering over 70% of the planet's surface, the ocean absorbs approximately 25% of CO₂ emissions produced by human activities, thereby mitigating the pace of climate change.

This carbon sequestration occurs through several mechanisms:

Physical Pump: CO₂ dissolves in surface waters and is transported to the deep ocean via currents, where it can remain sequestered for centuries.

Biological Pump: Marine organisms, such as phytoplankton, convert CO₂ into organic matter through photosynthesis. When these organisms die, their remains sink, transporting carbon to deeper layers.

However, the ocean's capacity to absorb CO₂ is influenced by factors like water temperature and salinity; warmer, saltier waters hold less CO₂.

Additionally, increased CO₂ absorption leads to ocean acidification, impacting marine ecosystems.

Understanding and preserving the ocean's role in the carbon cycle is crucial for effective climate change mitigation strategies.

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