On Tue, 08 Dec 2009 08:17:57 -0500, vaughn wrote:

"Peter Webb" wrote in message
...

So, if you take out the heat island effect, it was actually warmer in
1979 than it was in 2008.

True; but even you must know that you can't just "cherry pick" two
points out of a graph of a graph of fluxuating data. It is the trend of
the data that is important.

Thank you John Daly for showing that the earth has actually cooled if
the heat island effect is removed.

Redo that same graph to add a 10-year moving average and then see what
you "show".

Doesn't mean anything if the temperature recording station is now stuck
in the middle of urban development or a city that have grown up around it
over the centuries. This is the heat island effect that he is referring
to.