Author Archives: John A

The Dutch experience of sea-level rise

Following on from the prompting of Hans Errin, I took a look at his links on climate change in his country. The Dutch National Institute for Coastal and Marine Management (KNMI) produced the following picture (taken from this document). As you can see, sea levels were higher during the Medieval Warm Period (1000 years ago) […]

Spot the Hockey Stick! #4 – The US Climate Change Program

Another sighting of our favorite climate reconstruction is to be found at the "Strategic Plan for the Climate Change, Science Program, Final Report, July 2003", published by the US Climate Change Science Program. This document quotes the opinion of the IPCC 2001 report as the basis for its declaration Climate research has indicated that, globally, […]

Feedback from Dr Vincent Gray

McIntyre and McKitrick have done a great job casting doubt on the first part of the Mann "Hockey Stick" and I will be surprised if the IPCC can still retain it in its original form.  However, we are still up against the second part of the "Hockey Stick" the alleged surface temperature record, as promulgated […]

The articles that were cited earlier, have now gone into the National Post archive (where you have to pay to read them). However, the pdf for the English version of the Dutch article in Natuurwetenschap & Techniek (which is virtually identical to the National Post version) is at Ross McKitrick’s site at this link . […]

Spot the Hockey Stick! #2 The Kyoto Flames Cheerleaders

I defer to Roy Spencer on the subject of why the Hockey Stick was taken so seriously and so completely (my emphasis in bold): The hockey stick, along with the “warmest in 1,000 years” argument, has become a central theme of debates over the Kyoto Protocol, a treaty to limit emissions of greenhouse gases, in […]

Spot the Hockey Stick! #1 in a series of many

Steve and I thought it would be a great idea to play a game of “Where’s Waldo?” Except that instead of finding a cartoon character on a page in a children’s book featuring lots of cartoon characters, we’d instead try to spot the “Mann Hockey Stick” hiding in news articles and scientific reports. Our first […]

On the value of skepticism in science

I throw this in for reasons that should be obvious. “The fallibility of methods is a valuable reminder of the importance of skepticism in science. Scientific knowledge and scientific methods, whether old or new, must be continually scrutinized for possible errors. Such skepticism can conflict with other important features of science, such as the need […]