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The jet stream the past few days was a huge curve which was perfectly<br& --0015174c1162a91a5d04bbdd20de Content-Type: text/plain; charset=ISO-8859-1 I think the best thing I can contribute is to say that climate is the integration of weather over time. It is therefore difficult, if not impossible, to make climatic inferrences from only recent change(s). Rather, trends in climatic signals that reveal themselves over years or decades, or longer, lead to understanding what is happening climatically, and ultimately to forecast. So when asked about this particularly warm winter in our region, I would say that at this point it is very unlikely attributed definitively to either statistical variation or trend. However, there is an oceanic oscillation that we experience called the North Atlantic Oscillation (NAO) that affects our region more directly than El Nino/La Nina events generally do: http://en.wikipedia.org/wiki/North_Atlantic_oscillation As to Richard's comment about ice cap melt and effects on North Atlantic salinity circulation (aka the North Atlantic Conveyor), this is one of the theories behind the cause of the Younger Dryas cold event of ca. 12000 years ago, and loosely the plot driver in the Hollywood disaster movie The Day After Tomorrow: http://en.wikipedia.org/wiki/Younger_Dryas. If anyone would like to read more about this theory you could check out the work of Wallace Broecker who has published prolifically on this topic for decades. Bruce -- Bruce Stevens Maryvale, NS --0015174c1162a91a5d04bbdd20de Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable I think the best thing I can contribute is to say that climate is the integ= ration of weather over time. It is therefore difficult, if not impossible, = to make climatic inferrences from only recent change(s). Rather, trends in = climatic signals that reveal themselves over years or decades, or longer, l= ead to understanding what is happening climatically, and ultimately to fore= cast. So when asked about this particularly warm winter in our region, I wo= uld say that at this point it is very unlikely attributed definitively to e= ither statistical variation or trend.<br> <br>However, there is an oceanic oscillation that we experience called the = North Atlantic Oscillation (NAO) that affects our region more directly than= El Nino/La Nina events generally do: <a href=3D"http://en.wikipedia.org/wi= ki/North_Atlantic_oscillation">http://en.wikipedia.org/wiki/North_Atlantic_= oscillation</a><br> <br>As to Richard's comment about ice cap melt and effects on North Atl= antic salinity circulation (aka the North Atlantic Conveyor), this is one o= f the theories behind the cause of the Younger Dryas cold event of ca. 1200= 0 years ago, and loosely the plot driver in the Hollywood disaster movie Th= e Day After Tomorrow: <a href=3D"http://en.wikipedia.org/wiki/Younger_Dryas= ">http://en.wikipedia.org/wiki/Younger_Dryas</a>. If anyone would like to r= ead more about this theory you could check out the work of Wallace Broecker= who has published prolifically on this topic for decades.<br> <br>Bruce<br><br clear=3D"all"><br>-- <br>Bruce Stevens<br>Maryvale, NS<br> --0015174c1162a91a5d04bbdd20de--
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