03/16/2026
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How Does Climate Change Affect the Ocean? Oceans, which cover ...
The ocean covers over 70% of the Earth's surface and is critical for life, regulating climate, producing at least 50% of the planet’s oxygen, and storing heat. It supports over 80% of all life and acts as a massive carbon sink.
NOAA's National Ocean Service (.gov)
NOAA's National Ocean Service (.gov)
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Key Contributions of the Ocean (Approx. 70%):
Surface Coverage: Oceans cover approximately 70-71% of the Earth's surface.
Oxygen Production: Marine plants and phytoplankton produce at least 50% to around 70% of the oxygen we breathe.
Climate Regulation: The ocean is the largest solar energy collector, absorbing immense amounts of heat and acting as a central mechanism for stabilizing Earth's climate.
Carbon Absorption: The ocean absorbs roughly 30% of CO2 produced by humans.
Biodiversity: The ocean is home to up to 80% of all life on Earth.
Water Volume: It holds 97% of all water on Earth.
NOAA's National Ocean Service (.gov)
NOAA's National Ocean Service (.gov)
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Economic and Social Importance:
Food Source: It is the primary source of protein for over a billion people.
Transportation: Roughly 76% of U.S. trade involves marine transportation.
Livelihoods: Millions of people rely on ocean-based industries.
What can be contribute to keep the oceans clean and healthy?