We’ll never put this to bed completely, so why not do a post focused on the Hockey Stick Chart? It eventually gets dragged into any discussion of climate change that lasts over five minutes, so for those who are interested, let’s make this a compendium of remarks, assertions and civil discussions of the icon that turned a simmering debate into all-out war.
And then let’s keep it here.
- Was it wrong to publish this chart without specifically noting that the paleoclimatic data trended downwards at the end of the series?
- Should The Team have said more about the uncertainty of their findings?
- Should the AR3 Summary of Findings have had more specific language about the lack of certainty inherent in the data used to compile this figure?
- Was a real, significant Medieval Warming Period airbrushed out of existence?
- Were similar studies producing similar results in fact similarly flawed?
- Is tree ring data fit for purpose for establishing temperature records at that fine a level of detail?
- Was the version of PCA used by The Team selected post study in order to yield the shape they favored?
- Did The Team overstep the bounds of propriety in publicizing the implications of their work and agitating for suppression of dissenting views?
- Do Steve McIntyre’s criticisms overall have merit and should they be acknowledged in the world of climate science as substantive and valuable contributions to the record?
- Should different data sources be overlaid in a graphic presentation without specific explanation of the process and implications of the choices made?
There might even be one or two questions I’ve missed–feel free to jump in with more questions as well as your answers.
But remember–Even if all the answers prove to be negative for the actions of The Team, this really isn’t about human contributions to the Current Warming Period. This isn’t about the blade at the end of the Hockey Stick. The warming has in fact occurred, although we are uncertain as to the magnitude of human contributions.
We know what this particular controversy is truly concerned with–the well-publicized effort to convince politicians that the Current Warming Period is unprecedented over the last millenium.
It’s not about the Blade. Wesley Snipes wouldn’t stand a chance. It’s about…
Can you dig it?