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Gulf Stream 'is not slowing down'
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| Contributor | Eddie |
| Last Edited | Eddie Mar 29, 2010 04:53pm |
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| Category | Study |
| Author | Richard Black |
| Media | TV News - British Broadcasting Corporation BBC News |
| News Date | Monday, March 29, 2010 09:50:00 AM UTC0:0 |
| Description | The Gulf Stream does not appear to be slowing down, say US scientists who have used satellites to monitor tell-tale changes in the height of the sea.
Confirming work by other scientists using different methodologies, they found dramatic short-term variability but no longer-term trend.
A slow-down - dramatised in the movie The Day After Tomorrow - is projected by some models of climate change.
The research is published in the journal Geophysical Research Letters.
The stream is a key process in the climate of western Europe, bringing heat northwards from the tropics and keeping countries such as the UK 4-6C warmer than they would otherwise be.
It forms part of a larger movement of water, the Atlantic Meridional Overturning Circulation, which is itself one component of the global thermohaline system of currents.
Between 2002 and 2009, the team says, there was no trend discernible - just a lot of variability on short timescales.
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