The Blackboard

I’m getting “forbidden errors” on some posts, and comments on some posts. I don’t know why. This is posted to test whether comments work on new posts.
Update: comments seem to be working on all posts now. It appears to have been due to some spam protection I had in place. I don’t understand why [...]

Hideous crabgrass:
Will it invade in my garden
if our climate warms?

 
Oddly, this crabgrass is the result of the cool spring. In past few springs, I spread basil seeds after the soil warmed. I ended up with a basil forest.
This spring, the weather remained cool much too long. I got impatient this spring, and spread [...]

Ordinarily, I would just ignore this scatter shot mess Penguindreams wrote. However, Jonathan asked me to address Penguindreams’s. It appears Jonathan is worried that if I fail to respond, high school students in Boulder will be deprived of a reasoned rebuttal. I could post this all in your comments, but it’s my policy to [...]

I’m still on preliminaries for the analysis I’ve been doing. But today, I’ll show two graphs, and then discuss the general goals of the analysis I will be posting soon.
Here are some graphs comparing observations of global mean surface temperature (GMST) to “hindcast/projections” from the AR4. The graphs are based on an [...]

Roger Pielke Jr. posted a discussion of Yohe vs. Lomborg. Evidently, Yohe thinks Lomborg misconstrued his views; both Lomborg and Yohe. Both Yohe and Lomborg commented left comments at Roger’s blog.
So, I bet you think I’ll comment on whether or not anyone misconstrued anything? Wrong. I’m just still puzzling over the projection for global mean [...]

Trends for the Global Mean Surface temperature for “Merge 5″ data from Jan 2001-July 2008 have been calculated and compared to the IPCC AR4’s projected central tendency of 2C/century for the first few decades of this century. The “Merge 5″ data consist of the simple average temperature reported for five groups (GISS, [...]

HadCrut north-south average temperature anomaly rose from 0.312 C in June to 0.403 C in July. See Hadley North-South hemisphere blend. The area average is also up from 0.317C to 0.407C see Area averaged monthly averages.
GISS land ocean temperature anomalies are also up from 0.27C in June to 0.51 C in July. See [...]

I was reading the Volokh conspiracy, and came across the loss of civil liberties mug. Pour coffee in it, and your civil rights disappear. Interesting.
Even more interesting is that Amazon tells us people who bought the disappearing civil liberties mug also bought the global warming mug.

Those buying the disappearing civil liberties cup [...]

As I previously mentioned, I’m just looking at global mean surface temperature “model-data” from the GCM’s that form the basis for the predictions/projections in the AR4. As we often read, each model has its strengths, each has its weaknesses, but somehow the average is “best”.
So, I can’t help wondering if the [...]

Recently, I’ve been downloading “model data” from GCM runs that form the basis for projections in the IPCC AR4. I’m planning to compare some of the features to see how well the models reproduce the statistical properties of “weather noise”. But, first, I’m just plotting and looking at observations of earth data. [...]