Why Deny Global Warming?

Ted Cruz has recently been asked, by voters no less, why he denies global warming. His response has been to double down — nay, triple and quadruple down — on denial. His standard answer is a litany of idiotic denier memes, moronic talking points that are so easily refuted they can’t possibly appeal to anyone with half a brain and a smidgen of actual knowledge. If you’re in denial yourself, Ted Cruz sounds great; confident, fast-talking, all the right buzzwords, insults for your most reviled targets. But if you know the least bit of the truth about global warming, it’s far too obvious how full of baloney he is.

It raises a fascinating question: why is Ted Cruz (like so many others) in such extreme denial, and more to the point, why does he not only admit it, but flaunt it? Why not do like Marco Rubio and Jeb Bush, play the “I’m not a scientist” card and fall back on that other zombie lie — the “ruin the economy” lie, the one that isn’t just false, it’s the opposite of true?

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Adjusting U.S. Temperature Data

One of the loudest and longest criticisms of U.S. (and other) temperature data is that the raw data are adjusted to compensate for non-climate factors, so we can better identify the changes due to climate factors (which is, after all, what we really want to know).

All the adjustment procedures are well documented, programs, raw and adjusted data are publicly available, but deniers continue to imply either total incompetence or, far too often, outright fraud — that adjustments only exist to exaggerate warming trends. In truth, adjustments exist to make the data better.

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Global Warming Basics: Signal and Noise — and Trend

Even when climate is constant, unchanging, the weather is not.

Temperature is one aspect of weather (and therefore of climate), so it’s in constant flux, whether we’re looking at a single location or an average over the whole globe. The changes we observe, whether of ever-changing temperature or any other weather variable, can be divided into two broad categories: signal and noise.

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Question for the computer-savvy

It’s easy to get an “rss feed” for this (or just about any) blog. But I recently had a question, and I don’t know the answer. Is there a way to get an rss feed for *only* the posts here about basics?

I have so far (and will continue) titled all such posts beginning with “Global Warming Basics.” If you know of a way to limit an rss feed to those posts, please let us all know.


How to Destroy a Megalopolis

Many years ago (more than I care to admit), I went to spend a month at my mother’s house in Florida. She had a nice big back yard but didn’t tend to it very much, so nature had taken over. Part of that included a species common in Florida: fire ants.

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el Niño and Satellite Data

Having compensated surface temperature data for el Niño, volcanic aerosols, and solar fluctuations, it’s appropriate I should do the same for satellite temperature data. After all, upper atmosphere temperature (what the satellites estimate) responds to these factors much more strongly than the surface temperature, so it can be argued that it’s more important to compensate satellite data than surface data. Not doing so can cause some very misleading conclusions about temperature trends.

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Correcting for more than just el Niño

I recently showed a version of “el Niño-Corrected” temperature from Gavin Schmidt at NASA. My own calculation suggested that el Niño caused about the same contribution to 2015’s heat as Gavin’s estimate. However, there are some pronounced differences between our calculations.

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