Tag Archives: Hockey stick

20 years of hockey sticks

Posted on April 22, 2018 by ...and Then There's Physics

I wrote this post and then, after a discussion with Kevin Anchukaitis on Twitter, I took it down. I was tempted to not repost it, but thought I’d rewrite bits and have another go. I keep forgetting how controversial this … Continue reading →

Posted in Climate change, ClimateBall, Michael Mann, PAGES 2k, The philosophy of science, The scientific method | Tagged , , , , , , | 163 Comments

Another hockey stick

Posted on February 26, 2016 by ...and Then There's Physics

Realclimate has already covered this, so I won’t say much, but there is a recent paper (Kopp et al. 2016) that does a sea level reconstruction for the past almost 3000 years. The key figure is below, with the red … Continue reading →

Posted in Climate change, Climate sensitivity, ClimateBall, Global warming, Michael Mann, Science | Tagged , , , , | 24 Comments

A real Hiatus

Posted on September 16, 2014 by ...and Then There's Physics

For reasons I certainly won’t go into here, I intend to take a break from all of this blogging. I don’t know for how long, but for a few weeks at least, and maybe longer. Before I do, though, I … Continue reading →

Posted in Climate change, Climate sensitivity, ClimateBall, Global warming, Judith Curry, Michael Mann, PAGES 2k, Personal, Science | Tagged , , , , , , | 57 Comments

Fraudulent?

Posted on September 13, 2014 by ...and Then There's Physics

Greg Laden has a good post about Judith Curry’s recent post in which she implies that the Hockey Stick might be fraudulent. I recommend reading Greg’s post, but essentially he points out that it’s perfectly normal to take a large … Continue reading →

Posted in Climate change, ClimateBall, Global warming, Judith Curry, Science | Tagged , , , , , , | 279 Comments

Some new rules?

Posted on October 29, 2013 by ...and Then There's Physics

This is really just a post to say that I’m clearly going to have to introduce some new rules with regards to comments. There are a couple of recent comments threads that I’ve moderated badly and that have ended up … Continue reading →

Posted in Climate change, Global warming | Tagged , , , , , , , | 104 Comments

Engaging with “skeptics”

Posted on October 26, 2013 by ...and Then There's Physics

Sou has a recent post about why scientists talk to contrarians. This all started when Andrew Montford (Bishop Hill) reported on a talk by Rob Wilson. In this talk Rob discussed the analysis used by Michael Mann and colleagues to … Continue reading →

Posted in Climate change, Global warming, Michael Mann | Tagged , , , , , , , | 83 Comments

Hockey Sticks and things

Posted on October 23, 2013 by ...and Then There's Physics

There’s been a somewhat unfortunate spat involving Michael Mann, Robert Wilson and Tamsin Edwards, amongst others. I don’t really want to discuss the details of the spat (Sou has a post about it that includes some interesting comments) but there … Continue reading →

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Posted in Climate change, Global warming, Michael Mann, PAGES 2k | Tagged , , , , , , , | 66 Comments

McIntyre & McKitrick

Posted on July 11, 2013 by ...and Then There's Physics

Yesterday I wrote a post about Debunking the Hockey Stick. What I learned was that, as expected, many have already discussed this in some detail and, also, that there’s much about this that I don’t fully understand (no surprises there … Continue reading →

Posted in Climate change, Global warming, Steven McIntyre | Tagged , , , , , | 6 Comments

Debunking the Hockey Stick

Posted on July 10, 2013 by ...and Then There's Physics

This may be old news to many that read my posts, but a comment on one of my recent posts has made me think that I should try to address the claim that the Hockey Stick has been debunked. The … Continue reading →

Posted in Climate change, Global warming, Steven McIntyre | Tagged , , , , , | 40 Comments

The PAGES 2k consortium

Posted on April 23, 2013 by ...and Then There's Physics

The Past Global Changes (PAGES) project has released a progress article that has just appeared in Nature Geoscience. The article’s title is Continental-scale temperature variability during the past two millennia (this article is paywalled unfortunately). Watts Up With That (WUWT) … Continue reading →

Posted in Anthony Watts, Climate change, Global warming, Michael Mann, PAGES 2k, Steven McIntyre, Watts Up With That | Tagged , , , , , , , , , | 7 Comments