In message , Peter Webb
writes
If the stream changes course, or ice melt forces it deeper,
its effective heat-carrying capacity will change.

And that could be a problem for some parts of Europe.


Yeah. Cooling apparently.

AGW can't lose. If temperatures go up, its due to CO2 increases. If
they go down, its due to ocean currents changing as a result of CO2. If
they stay the same, its proof that the heating from CO2 is exactly
offset by ocean current changes due to CO2.

The GLOBAL average temperature is going up, but some parts of the planet
will get warmer and some get colder. For example if the Gulf stream
stops then the UK will lose the warming that it gets from it. That is a
known LOCAL effect, but even if it happens it will not affect GLOBAL
temperatures because the warmth that the UK would have got from Gulf
stream will simply remain somewhere else e.g. the Caribbean.

The current cold weather in the UK is nothing to do with the Gulf stream
though, it's to do with the location of the jet stream. This is well
understood:

http://planetearth.nerc.ac.uk/featur...ry.aspx?id=146

So where is the warmth that the UK should have got in December 2010? It
turns out that it's stuck over Greenland, this was predicted:

http://www.sikunews.com/News/Denmark...and,-warm-8208

So let's have a look at how that turned out. From here you can that the
average temperature for Godthaab, Greenland in December is between -10c
and -5c:

http://www.bbc.co.uk/weather/world/c...ml?tt=TT000990

Now have a look at the actual min and max Godthaab temperature for the
last 4 weeks i.e. end of November, start of December 2010:

http://tinyurl.com/3a8u7uj

You can see that the average temperature is well above 0c for the period
that matches the western Europe's cold snap. Greenland has our usual
warmth, neatly matching the prediction.

Note that to disprove AGW you have to find observations that disprove
real scientific predictions, not fake strawman predictions that you make
up yourself.

snip
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