Dnarever wrote on Jan 16
th, 2018 at 9:01pm:
Scientists predict 'mini ice age' could hit UK by
How do they know that it will only hit the UK ?
OK for the rest of us ?
There are negative feedback loops in the climate.
Put simply - if you try to heat up the Earth it
will react by getting colder.
One example of such a loop is the melting of fresh water
from Greenland which would cause the Gulf stream to stop
and plunge not only England but the whole of Europe into an Ice Age.
Remember London is 51 degrees North & so is the middle of Canada.
Without the effect of the Gulf stream, Europe would have a
climate just like Canada -
extreme winter cold.
But there is more -
there are many other feedback loops & they can not only be negative feedback -
there are positive ones too.
A good example of a positive loop is the albedo affect -
caused by ice reflecting sunlight & heat back into space.
The more ice you get - the colder it gets.
And where the ice has melted, dark ocean water is exposed. These changes decrease the albedo.
With a lower albedo more solar energy is absorbed and less is reflected. This causes more ice to melt, which in turn lowers the albedo, causes more energy to be absorbed and more warming to occur.
Positive feedback is known as an under damped system
and can oscillate wildly about a mean temperature.
Are every one of these feedback systems in the climate models?
I doubt that all the possible systems are well understood
or even known about.
Also - climate scientists get their money from proving
that there is AGW.
If they came up with opposite results their funding would be cut off.