On the relative change between the level of ocean and land in the Sacramento Delta

When I posted a couple of weeks back on the fact that land in the Sacramento-San Joaquin Delta is subsiding faster than sea level is rising, a smart reader asked privately, “Yeah, so what’s the point?” My reader’s observation was, in essence, that it doesn’t really matter much in terms of policy response whether the …

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Stuff I wrote elsewhere: climate change and megafires

With the Whitewater-Baldy fire pushing 260,000 acres (New Mexico’s largest by a wide margin), I spent some time talking with the forest-climate community about climate change, forest health and the role of natural variability in creating the conditions for the southwest’s recent megafires: Global warming is playing a role in the conditions in the Gila …

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Inkstain Weather Central: a dry May

Let us stipulate that my home weather records are subject to what Tversky and Kahneman would likely call “the law of small numbers“. Which is to say that, when I tell you May is the driest month of the year around here, you should suspect my statistical reasoning. That said, it is factually correct to …

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Science literacy, numeracy and science policy challenges

Dan Kahan, the Yale “cultural cognition” guy, has a new paper highlighting the problem with the argument that a more scientifically literate public will solve all our scientized problems, things like climate change, GMOs and nuclear stuff where the scientific argument has become intractably embedded in a political context.  (The paper’s actually targeted at climate …

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Q: When is an April 1 snow survey not an April 1 snow survey?

A: When April 1 falls on a Monday. That’s the conclusion of a clever bit of work by Tom Pagano, former NRCS forecaster who used to do the Rio Grande forecasts before he went on to bigger and better things. “Bigger and better” has included a stint in Australia and a current world tour of …

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The climate change-steroids analogy in reverse?

Much has been made of the analogy that climate change is like steroids for our weather. But what if we’ve got the thing backwards? Here’s baseball sage Tim McCarver: It has not been proven, but I think ultimately it will be proven that the air is thinner now, there has been climactic changes over the …

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On data and incentives

I’ve long been suspicious of ski area snow reports, preferring to go with Snotel data when writing about storms. It turns out my skepticism was warranted. From Zinman and Zitzewitz (pdf): Ski resorts self-report substantially more natural snowfall on weekends. Resorts that plausibly reap greater benefits from exaggerating do it more.