GISS
illconsidered | November 7, 2010[Update: I am closing this thread as it is now over 500 comments long. However, because the discussion is still ongoing it will continue on this post. There is also the possibility of Chris S coming back with his own analysis of Richard's data.
This is a quick summary of what we can conclude thus far.
Richard thinks he is a sceptic. I am sorry to say that he is not. A sceptic considers all available material and evaluates evidence objectively. We know Richard does not do this because he has several times cited material that he admits himself he has not read. A sceptic will consider all…
illconsidered | February 1, 2010A commenter just asked on the original "One or two warm years is not Global Warming" thread if the article is still true five years later.
Certainly the logic of it, that the temperature trend is unequivocally warming and we are not claimig global warming because of a record or two, still holds, but I thought it might be interesting to revisit the specific data points I raised in it and ask if they are still true.
The temperature data points are from the GISS analysis and can be found here (as you see, I have discovered where they hide their data!).
The statements I made are as follows:
every…
illconsidered | July 15, 2009Changes? Well hardly. Apparently the shocking "dog bites man" story of minuscule changes in GISS global anomaly data is making the rounds on denier sites.
A poster here embedded the copy/pasted accusation in an off topic thread, it goes thus:
Looks like Hansen/GISS is up to their old tricks;
Here are the June global temperature anomaly comparisons:
GISS .63C
RSS .075
UAH .001
GISS is way above the other two, but it does not end there apparently 2007 has now replaced 1998 as the second hottest year on record this was achieved not by rigorous scientific study and evaluation but by sleight of…
tlambert | January 16, 2009When discussing Jon Jenkin's use of a ridiculous sixth-degree poynomial fit to temperatures to argue that they were steeply trending down, I suggested that local regression (loess) was a much better method for showing trends. I was going to get around to plotting one, but Tamino has saved me the trouble by producing a loess smooth on GISS temperatures.
See Tamino's post for more graphs, including one showing how Dennis Avery misrepresented temperature trends even worse than Jenkins did.
illconsidered | November 18, 2008This is just one of dozens of responses to common climate change denial arguments, which can all be found at How to Talk to a Climate Sceptic.
Objection:
In October, 2008, Al Gore's science advisor, James Hansen announced yet another "hottest" month on record. After all the alarmist banner headlines sank in, yet another "correction" quietly contradicted this, and October was not particularily warm after all. This is yet another example of why the temperature record can not be trusted.
Answer:
Wow. Where to begin with this one? There are many versions of this myth around already at the time…