The thermocline causes most oceans to have a reduced capacity to absorb carbon dioxide.

Question

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The thermocline is a layer in the ocean where the temperature changes rapidly with depth. This layer acts as a barrier to mixing between the deep and surface waters. Since carbon dioxide is primarily absorbed by surface waters, the thermocline limits the amount of carbon dioxide that can be mixed into deeper waters, resulting in a reduced capacity for the ocean to absorb carbon dioxide.

The Thermocline Causes Most Oceans to Have a Reduced Capacity