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Natural World Facts #Wildlife

The Marine Carbon Cycle Explained

The marine carbon cycle consists of the biological pump, the carbonate pump and the physical pump.

The biological processes of respiration, predation, death and decomposition, along with physical processes such as the thermohaline circulation, work together to remove carbon from the atmosphere and sequester it in the oceans.


In this video we'll explore what makes the oceans a net carbon sink, and why the marine world is so important to the global carbon cycle.


TIMELINE

00:00 - An Introduction to the Marine Carbon Cycle

01:52 - The Biological Pump - Diffusion of Carbon

02:36 - The Biological Pump - The Role of Phytoplankton

03:42 - The Biological Pump - Predation and the Food Web

04:52 - The Biological Pump - Diel Vertical Migration

06:30 - The Biological Pump - Marine Snow and the Deep Sea

08:14 - The Biological Pump - Whale-falls and Carrion

09:38 - The Carbonate Pump - The Formation of Limestone

10:25 - The Carbonate Pump - The White Cliffs of Dover

11:02 - The Carbonate Pump - The Role of Coral Skeletons

12:05 - The Carbonate Pump - The Shell-building Animals

13:13 - The Physical Pump - Upwelling and Downwelling

14:08 - The Physical Pump - Thermohaline Circulation

15:08 - Conclusion: The Importance of the Marine Carbon Cycle

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