Skeptophilia (skep-to-fil-i-a) (n.) - the love of logical thought, skepticism, and thinking critically. Being an exploration of the applications of skeptical thinking to the world at large, with periodic excursions into linguistics, music, politics, cryptozoology, and why people keep seeing the face of Jesus on grilled cheese sandwiches.
Showing posts with label eruption. Show all posts
Showing posts with label eruption. Show all posts

Tuesday, February 3, 2015

Science as gossip

One of the things that really bugs me is when people accept the vague hand-waving fears of laypeople over the hard evidence and research of actual scientists.

I suspect it's because we've been taught to respect common, down-home, folksy talk more than the esoteric vocabulary of the ivory-tower intellectuals.  We read articles online, and they seem to have been written by "ordinary folks like us," and after all, "ordinary folks like us" wouldn't lie, right?  Add that to the fact that scientific papers are often confusing and difficult to follow, many of them using abstruse mathematics to support their conclusions, and I suppose it's not really that surprising that we're more likely to trust The Daily Mail than Nature.

But for criminy's sake, at least try to understand what the scientists are saying.  Otherwise we'll be stuck forever with nitwits like Jenny McCarthy altering national vaccination rates, and mental midgets like James Inhofe driving environmental policy.

This tendency, I suspect, is also why you see articles like the one that appeared a few days ago on Intellihub called "Yellowstone Supervolcano On Verge of Eruption: USGS Suppressing Information."  The title is self-explanatory; we have more fear-mongering over the potential for a catastrophic eruption, one which (according to the article) would "destroy a 1000-mile swath of the United States."

But this article is different, because it claims that the eruption is going to happen in the next two weeks.

Grand Prismatic Spring, Yellowstone National Park [image courtesy of photographer Clément Bardot and the Wikimedia Commons]

First, the article states that the warning came from one Hank Hessler, a park geologist.  This sounds pretty authoritative; and, in fact, Hessler is a real guy with real credentials.  But if you listen to the YouTube video where the whole nonsense started, you find that what Hessler actually said was that regarding what the volcano is doing, he "can't see past two weeks" -- in other words, the conditions in the magma chamber shift quickly and unpredictably, so making a prediction about what this or that hot spring will do is impossible more than two weeks out.  But how this was interpreted by the YouTube commentator, and every other damn blogger and news source that picked this up, was that Hessler couldn't see past two weeks because after that, we'd all be dead.

The Intellihub article goes further; there's a massive coverup by the United States Geological Survey, designed to keep us in the dark about all of this.  Why?  Who knows?  Because it's government, that's why, and obviously government exists only to kill us all.  But this is where it gets interesting, because Shepard Ambellas, author of the article, starts waving his hands around like mad to support the claim.  "Although no one knows for sure if Hessler’s prediction will come true," Ambellas writes, "it does set an eerie overtone for people located within a 1000 mile swath of the park."

Why is it eerie if no one knows if it's true?  How about we check with a scientist that Ambellas hasn't had a chance to misquote, like Ilya Bindeman of the University of Oregon:
Our research of the pattern of such volcanism in two older, 'complete' caldera clusters in the wake of Yellowstone allows a prognosis that Yellowstone is on a dying cycle, rather than on a ramping up cycle. Either the crust under Yellowstone is turning into hard-to-melt basalt, or because the movement of North American plate has changed the magma pluming system away from Yellowstone, or both of these reasons.
Based upon his studies, he believes that the next Yellowstone eruption might actually happen...

... in one or two million years.

But let's go back to Ambellas:
On March 4, 2014, Intellihub came across information, by an unnamed source, who reported that the White House had ordered the United States Geological Survey (USGS) to suppress earthquake swarm data within the region to hide what may be coming from the general public.
Oh, those unnamed sources.  So much more reliable than actual scientists.

And we're already overdue, Ambellas says, because clearly volcanoes are like trains and run on schedules:
In fact reports suggest that ancient Helium4 gas has breached the surface layers of Yellowstone’s crust and is now escaping into the earth’s atmosphere.  Coupled with the recent and abrupt ground level rise in the park we may be looking at a recipe for disaster...  In fact, the last Yellowstone eruption was thought to have happened around 630,000 years ago, meaning we are about 30,000 years overdue, literally putting us in the hot seat, front row.
Ooh, helium-4!  That sounds terrifying.  And "30,000 years overdue" definitely equates to "a catastrophic eruption in two weeks."

But the best part comes right at the end:
And it gets even worse. Although there is no way I can vouch for the information, I simply can’t. But according to a random individual who posted a video on YouTube, the USGS has likely been ordered by Washington to suppress information regarding recent seismic activity and gaseous releases in and around the Yellowstone region as a possible ELE [extinction-level event] is on the way.
Not a "random individual who posted a video on YouTube!"  Those guys know everything.  Certainly more than the evil scientists, who are in the pay of the USGS and the NSF and the NOAA and all sorts of other agencies whose names are made up of a bunch of scary letters.

But the part that jumped out at me was "there is no way I can vouch for the information, I simply can’t."  If you can't vouch for the information, then for fuck's sake, why are you writing about it?  This is science you're talking about, not the latest gossip on the Kardashians.  There are ways to verify science, and you don't do it by looking at what Mr. Random Individual posted on YouTube.  You read scientific papers (like this one and this one).  You (gasp!) learn some actual geology.

So sorry, Mr. Ambellas (because you actually sound like you're looking forward to it): the US is not about to be destroyed by a volcanic eruption.  The only scientist you even considered in your article, you misquoted and misinterpreted (and if I were Hank Hessler, I'd be pissed).  You're getting a lot of non-scientists stirred up, which I have no doubt was your goal.

But I wish you'd stop.  Because the last thing we need is to give the general public a more jaundiced view of science.  And that's what's going to happen, you know?  When two weeks passes, and we're all still here, unvaporized, your average layperson is much more likely to say, "Those dumb scientists, forecasting gloom and doom, and wrong as usual" than the correct response, which is, "Shepard Ambellas lied to us so that we'd click on his website."

Thursday, May 8, 2014

Accretion, eruption, and paranoia

Astrophysicists talk about the process of accretion, where microscopic particles of dust and ice stick together (largely through electrostatic attraction), leading to the formation of disks of matter around the parent star than can eventually form planets.  As the clumps of dust get larger, so does their gravitational attraction to nearby clumps -- so they grow, and grow, and grow.

Conspiracy theories also grow by accretion.

One person notices one thing -- very likely something natural, accidental, minor, insignificant -- and points it out.  Others begin to notice other, similar phenomena, and stick those to the original observation, whether or not there is any real connection.  And as the number of accreted ideas grows, so does the likelihood of attracting other ideas, and soon you have a full-blown gas giant of craziness.

It seems to be, for example, how the whole nonsense about "chemtrails" started.  A reporter for KSLA News (Shreveport, Louisiana) in 2007 was investigating a report of "an unusually persistent jet contrail," and found that a man in the area had "collected dew in bowls" after he saw the contrail.  The station had the water in the bowls analyzed, and reported that it contained 6.8 parts per million of the heavy metal barium -- dangerously high concentrations.  The problem is, the reporter got the concentration wrong by a factor of a hundred -- it was 68 parts per billion, which is right in the normal range for water from natural sources (especially water collected in a glazed ceramic bowl, because ceramic glazes often contain barium as a flux).  But the error was overlooked, or (worse) explained away post hoc as a government coverup.  The barium was at dangerous concentrations, people said.  And it came from the contrail.  Which might contain all sorts of other things that they're not telling you about.

And thus were "chemtrails" born.

It seems like in the last couple of months, we're seeing the birth of a new conspiracy theory, as if we needed another one.  Back in 2011, I started seeing stories about the Yellowstone Supervolcano, and how we were "overdue for an eruption" (implying that volcanoes operate on some kind of timetable).  At first, it was just in dubiously reliable places like LiveScience, but eventually other, better sources got involved, probably as a reaction to people demanding information on what seemed like a dire threat.  No, the geologists said, there's no cause for worry.  There's no indication that the caldera is going to erupt any time soon.  Yes, the place is geologically active, venting steam and gases, but there is no particular reason to be alarmed, because volcanoes do that.

Then, last month, we had people who panicked when they saw a video clip of bison running about, and became convinced that the bison had sensed an eruption coming and were "fleeing the park in terror."  And once again, we had to speak soothingly to the panicked individuals, reassuring them that bison are prone to roaming about even when not prompted to do so by a volcano (cf. the lyrics to "Home on the Range," wherein the singer wishes for "a home where the buffalo roam," despite the fact that such a home would probably face animal dander issues on a scale even we dog owners can't begin to imagine).

[image courtesy of photographer Daniel Mayer and the Wikimedia Commons]

But the accretion wasn't done yet.  The bison were too running from the volcano, people said.  So were the elk.  And then the real crazies got involved, and said that the government was already beginning to evacuate people from a wide region around Yellowstone, and relocating them to FEMA camps where they are cut off from communicating with anyone.  And when there was an explosion and fire at a gas processing plant in Opal, Wyoming two weeks ago, 150 miles from Yellowstone, and the whole town was evacuated, the conspiracy theorists went nuts.  This is it, they said.  It's starting.  The government is getting people out, because they know the whole freakin' place is going to explode.

Never mind the fact that the residents of Opal were all allowed back two days later, once the fire was under control.  Facts never seem to matter much, with this crowd.

So once again, the scientists are trying to pour oil on the waters.  An article in Wired yesterday describes recent research by an actual geologist (i.e. not just some crank with a videocamera) that has shown that the magma beneath the Yellowstone Caldera is mostly a semisolid, and is far below the threshold of 40% liquefaction that most volcanologists think is necessary for an eruption.  And we're not talking about some hand-waving layperson's "the volcano is overdue for an eruption" foolishness; this is a peer-reviewed technical study that merited publication in the prestigious journal Geophysical Research Letters.  And about the conspiracy theorists, the article in Wired minces no words at all:
As usual, people are trying to rabble rouse when it comes to the Yellowstone Caldera. All these rumors that the government is trying to hide evidence of an impending eruption are pure fantasy, but that doesn’t stop some people from acting out their delusions to the detriment of others who fall prey to this misinformation. Yes, the Yellowstone Caldera is a massive volcano that has the potential to produce huge eruptions, but no, there are no indications right now that any sort of eruption will happen any time soon — and I’d be surprised if we see an eruption in our lifetime (just like any volcano that hasn’t had a confirmed eruption in the last ~70,000 years).
Of course, this will probably turn out to be shouting into a vacuum, as arguing with conspiracy theorists usually turns out to be.  Witness the fact that despite all of the research and debunking of chemtrails, the whole thing still has a considerable cadre of true believers, who claim that anyone who argues to the contrary is a blind fool at best and an evil shill at worst.

So look for more Yellowstone paranoia to be zinging about the interwebz over the next few weeks.  As for me, I'm grabbing the fleeing bison by the horns and going to Yellowstone in July.  We'll see if there's anything to all the hype.  I'm hoping to do some sightseeing and birdwatching and hiking, and simultaneously hoping not to be killed in a massive volcanic eruption or shot by a FEMA operative or hustled away into some godforsaken refugee camp.

Always the optimist, that's me.

Saturday, April 5, 2014

Fear tactics and fleeing bison

Is there some facet of human personality that craves disaster?

I ask this question because of a story sent to me by a loyal reader of Skeptophilia called, "Reports of Bison 'Fleeing' Yellowstone Amid Fears Quake Could Trigger Eruption of Park's Supervolcano."  In it, we read a lot of fairly terrifying stuff about the supervolcano that lies beneath the park, and what havoc it could cause if it erupted:
Yellowstone National Park sits atop the Yellowstone Caldera, the crater of a massive supervolcano. The park attracts millions of visitors each year to its famous geysers and hot springs, powered by the hot lava below. 
In recent years, scientists discovered the caldera is 48 kilometres wide — far larger than previously thought... 
The Yellowstone super volcano has had three cataclysmic eruptions — 2 million, 1.3 million and 640,000 years ago, creating a series of ‘nesting’ calderas, say scientists.
The eruption 2 million years ago was the most catastrophic, covering half of North America with ash and wiping out prehistoric animals, reports the Yellowstone Volcano Observatory... 
The inevitable next ‘big one’ will wipe out the surroundings for hundreds of kilometres, covering the US and Canada in ash, [University of Oregon geologist Ilya Bindeman] told EarthSky. It would devastate agriculture and cause global cooling for a decade, he says. 
A volcanic eruption of that size “hasn’t happened in modern civilisation,” he said.
All of which is true, of course.  And we're even told at the end, seemingly as an afterthought, that scientists are pretty sure that an eruption isn't imminent and that we'll have plenty of warning before one occurs (not that we'll be able to do much to stop it).

But before getting that reassurance, we're shown a video clip of some bison "fleeing for their lives" and told that the "animals may be leaving the park because they sense an impending catastrophic volcanic eruption triggered by recent earthquakes."

[image courtesy of photographer Jack Dykinga and the Wikimedia Commons]

Well, I looked at the video, and the first thing I noticed was that the bison didn't seem particularly alarmed.  I didn't get the "fleeing for their lives" vibe from them.  They were more moseying for their lives, or possibly even ambling for their lives.

But second, what the hell is the writer of the article trying to do by telling us in one breath that the bison were running away because the volcano is going to erupt, and in the next saying that scientists don't think it's going to erupt?  I've seen bison, and I know a good many scientists, and I think I can say without fear of contradiction that most scientists are smarter than your average bison.

But we don't have a very good track record of listening to scientists, do we?  I'm honestly not surprised that the American citizenry would discount what a scientist is saying in favor of prognostications by a large ungulate, given our general approach on evolution, climate change, and vaccination.

Now, of course I know why the media loves stories like this; it gets people to click the links and read the articles.  But I'm more mystified why the general public likes disaster stories.  Since I was sent the link, I've seen the story posted three times on Facebook and twice on Twitter.  Why are people so eager to spread around a bogus story (and I'm convinced that anyone that has more brains than a bowl of chowder could tell that it was bogus just by reading all the way to the end and seeing the disclaimer about scientists doubting that we were going to see an eruption soon)?

So something must be appealing to people about "We're All Gonna Die" stories, but I'm damned if I see what it is.  At least the other idiotic stories that you see floating around -- stories of the "Miley Cyrus Pregnant With Bigfoot's Love Chid" type -- don't leave you with the impression that civilization is about to end.

Although now that I think of it, I can understand how you might pray for the apocalypse after seeing the Miley Cyrus "twerking" video.  I know I did.  So maybe there's some justification after all.