What is “ad hominem”?

It’s this.

Perhaps someone should point this out to Anthony Watts. And the next time he accuses anyone else of ad hominem, perhaps he should be reminded.

Whew!

How Long?

One of the most often-asked questions about climate data is, “How long a time period do we need to establish a statistically significant trend?”

Sum Fun

A new post on WUWT by S. I. Outcalt concludes that “the modern warming regime ended in 1997.” Outcalt transforms various data sets, and although he refers to his transformation as the “Hurst rescaling” (in order to associate it with the “Hurst exponent”) it’s really just a rescaled version of something statisticians were familiar with long before Hurst, called cumulative sums.

Denier Denier Denier …

It wasn’t that long ago that Nature Climate Science published a paper using the word “denier” to describe those in denial of global warming. Anthony Watts was all up in arms about it, with not one, not two, but three posts expressing outrage.

Hotspot Data

In the last post we discussed the “Northeast hotspot.” It’s a region of the Atlantic coast of North America where sea level rise has accelerated in recent decades, identified by Sallenger et al.

Sea Level Rises … Tisdale Falls

A reader asked whether we might take a look at a recent post by Bob Tisdale on WUWT. Let’s do that, shall we? Incidentally, Tisdale has since created another post on WUWT on the same subject, which is: a paper by Sallenger et al. showing that sea level has recently accelerated in a region of the Atlantic coast, a region they call the “Northeast hot spot,” or NEH.

Open Thread and Interesting Article

There’s an interesting article from Popsci, well worth a read. It includes this quote from Katharine Hayhoe:

When I get an e-mail that mentions my child and a guillotine, I want to pull a blanket over my head.

Evidently the fake skeptic strategy of denying the science isn’t working, so they’re using other tactics.

Sea Ice Update

I’ve said it before and I’ll say it again: one of the strongest evidences of global warming is the dramatic loss of sea ice in the Arctic. Northern hemisphere sea ice has taken a nose-dive recently, which has caused some speculation in the blogosphere that we might be headed toward a record-shattering melt season.

Skin a Cat

Before I begin let me make it clear that this is not about abusing cats. I love cats. We have a cat. We treat him very well. He treats us as though it’s our duty to worship him. He’s a cat.

This is about the old adage that “there’s more than one way to skin a cat.”