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Monday, October 14, 2013

Ocean and climate: The new theory

Ocean and climate: The new theory
Is this the end of a scientific paradigm on the effects of climate change? It would seem that global warming is not intensifying the rise of cold deep water, a phenomenon known as 'upwelling', characteristic of certain coastal zones. For over twenty years, specialists have believed that climate change is reinforcing the trade winds at the origin of these phenomena, thereby cooling the surface water. A new study, led by a team from the IRD and its partners, off the coast of West Africa, has shown that this is not the case for the ecosystem of the 'Canary Current'. On the contrary, it reveals that the coastal waters from Morocco to Senegal have been getting warmer for the past 40 years.

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