42 - Methane Hydrates

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Weakening Gulf Stream 42
Set 5 www.climatefresk.org 42 The Gulf Stream is part of the ocean's thermohaline circulation. It could weaken in response to freshwater input from Greenland's melting ice sheet. This could disrupt the water cycle even more and reduce the ocean's capacity to absorb more carbon and heat.
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1
Cause

Melting of Ice Caps

Melting of Ice Caps

Freshwater coming from the melting of Greenland may threaten the thermohaline circulation.

3
Consequences

Carbon Sinks

Methane Hydrates

CO2 is absorbed at the surface of the ocean. Thermohaline circulation helps mix watersurface and deep ocean which is essential to the absoption of CO2 by the ocean.
Energy Budget

Methane Hydrates

Heat is absorbed at the surface of the ocean. Thermohaline circulation helps mix watersurface and deep ocean which is essential to the absoption of energy by the ocean.
Disruption of the Water Cycle

Methane Hydrates

Weakening of thermohaline circulation may disrupt water cycle even more in many places in the word.
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