Pages

Thursday, September 18, 2014

Bud Meyers: A Lifetime for the 99ers


Thursday, September 11, 2014

Summer Hiatus

Regular posting to the HelpThe99ers blog will resume in the coming days. Thank you.

Monday, July 28, 2014

Coolest Summer On Record In The US?

I came across this post from Mark Perry on AEI-Ideas. The headline, "Inconvenient chart of the day: Coolest US summer on record," caught my eye, as did the graph, which I've reproduced below:


The data comes from the US HCN, the United States Historical Climatology Network, and the graph seems to show that the number of 90-degree days is been trending down over time.

Here's the question: is the number of 90-degree days per year a good proxy for the average US temperature during the summer? I'm not sure it is. The next chart tells the tale:


The chart comes from NOAA, and you can play with the time series. I've chosen to chart the average US temperature of the "lower 48" for the summer months of June, July and August.

The 90-degree day chart doesn't look like a good proxy at all: its trend line is sloping down, but the actual average summer temperature is sloping up.

Friday, June 27, 2014

Ayn Rand Is Not Thomas Jefferson.

To his good credit, Mark Perry has updated a post containing an egregious error.

But why did he include it to begin with? Wouldn't a brief fact check have prevented this from happening in the first place?

What to file this under: confirmation bias? Motivated reasoning?

Do others on the right confuse Rand with Jefferson? I think so, and I'l look at Rep. Paul Ryan as a perfect example.