12-18-2008, 03:33 PM
And as for Loehle's "average of 18 non-tree ring proxies"
A small excerpt:
http://www.realclimate.org/index.php/arc...tructions/
Again, not ad hominem. It says nothing about how he heats his swimming pool. It says a lot about where he gets his data and how he uses it.
A small excerpt:
What does this imply for Loehle's reconstruction? Unfortunately, the number of unsuitable series, errors in dating and transcription, combined with a mis-interpretation of what was being averaged, and a lack of validation, do not leave very much to discuss. Of the 18 original records, only 5 are potentially useful for comparing late 20th Century temperatures to medieval times, and they don't have enough coverage to say anything significant about global trends. It's not clear to me what impact fixing the various problems would be or what that would imply for the error bars, but as it stands, this reconstruction unfortunately does not add anything to the discussion.
http://www.realclimate.org/index.php/arc...tructions/
Again, not ad hominem. It says nothing about how he heats his swimming pool. It says a lot about where he gets his data and how he uses it.