On 24/09/2007, Zeke Hausfather <[EMAIL PROTECTED]> wrote: > > The risk of Northern Europe plunging into > a new Ice Age due to global warming have been overplayed in the media > to an extent not supported by the science.
Good so far The THC is a global ocean circulation driven by changes in density and > salinity of ocean waters. I think that there are hideously complex oceanographic reasons why this isn't fully accurate. the THC *is* the global thermo/haline circulation but isn't fully driven by density differences - wind forcing is important. You cannot truely separate the two. Did RC do this? RMG might know the truth - there is a Theorem in in. The THC is one of the main reasons > that the United Kingdom and other Northern European countries enjoy > such a mild climate, despite sharing the same latitude as Siberia > (http://www.climate.unibe.ch/~stocker/papers/stocker02sci.pdf). That can be qualified too (maritime/contintenal). We know from the paleoclimate record that the THC has shut down in the > past, causing temperatures in Northern Europe to fall 3 to 6 degrees > C. Is that true? (I'm unsure). The best D-O records are from the greenland cores. What are you using for northern europe? These shutdowns are thought to be caused by massive freshwater > releases into the North Atlantic from enormous glacial lakes that > develop as the world moves out of ice ages. You might be overcertain on the cause here. While a slowdown of the THC would still > have a cooling effect on Northern Europe, it would likely be more than > offset by the larger global warming trend. yes. May need more emphasis for the general public. In 2005, Harry Bryden, an oceanographer, and his research team > published an article in Nature that shocked many in the climate field Irritated might be closer -W. -- William M. Connolley | www.wmconnolley.org.uk | 07985 935400 --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups Global Change ("globalchange") newsgroup. Global Change is a public, moderated venue for discussion of science, technology, economics and policy dimensions of global environmental change. Posts will be admitted to the list if and only if any moderator finds the submission to be constructive and/or interesting, on topic, and not gratuitously rude. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/globalchange -~----------~----~----~----~------~----~------~--~---
