Las inestabilidades de la circulación termohalina del Atlántico Norte: lecciones del pasado
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[1] GEOTOP
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- Localización: Contribuciones al estudio del periodo cuaternario / coord. por Javier Lario, Pablo G. Silva Barroso, 2007, ISBN 978-84-7484-201-2, pág. 9
- Idioma: español
- Texto completo no disponible (Saber más ...)
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Resumen
Despite the recent IPCC assessment that "Most models show weakening of the Northern Hemisphere Thermohaline Circulation (THC), which contributes to a reduction of surface warming in the northern North Atlantic. Even in models where the THC weakens, there is still a warming over Europe due to increased greenhouse gases” there is still a widespread misunderstanding of the possible consequence of climate change on the Atlantic Ocean Meridional Overturning. In particular, it is often put forth that a possible consequence of anthropogenic greenhouse gas emissions is: "Global warming will cause the onset of the next ice age". Here I document the history from where this misconception arose and show how it is impossible for an ice age to ensue as a consequence of global warming. Through analysis of the paleoclimate record as well as a number of climate model simulations, it is also concluded that it is very unlikely that the Atlantic Meridional Overturning will cease to be active in the near future, but that a region where intermediate water formation may shut down, is in the Labrador Sea, although this has more minor consequences for climate than if deep water formation in the Nordic Seas were to cease ...
