This Chart Shows Why Your Conspiracy Theory Is Really Dumb

<a href="http://www.shutterstock.com/pic-123756019/stock-photo-boy-in-a-tin-foil-hat.html?src=heSjXElNoSaUFmOXQnjHtg-1-2">Suzanne Tucker</a>/Shutterstock


Update, 2/2/2016: Chris Bauch, an editor for PLOS ONE, said in an email that the author of the study we reported on below “should have used a different model for some of the analyses” and that the author “is working on submitting errata.” Bauch added, however, that he is “pretty sure the correction will not change the conclusions” and that he does not “foresee a retraction.” We’ll update when we know more.

By now, climate change has joined the moon landing and the JFK assassination in the upper echelons of fodder for conspiracy theories. Back in 2004, Sen. James Inhofe (R-Okla.) called global warming the “greatest hoax ever perpetrated on the American people.” A few years later, Inhofe told our own David Corn that the climate hoax was most likely being perpetrated by Barbra Streisand. Donald Trump, meanwhile, thinks it was “created by and for the Chinese.” I could go on.

There’s plenty of evidence that these conspiracy theories are garbage, starting with the overwhelming scientific consensus about climate science and the fact that 2015 was the hottest year on record. But in case you’re still not convinced, here’s another bit of proof.

In a new peer-reviewed paper in the journal PLOS ONE, an Oxford physicist devised a mathematical formula for the lifespan of conspiracy theories—that is, how long it would likely take for them to be publicly unveiled if they were in fact true. It’s not long: In the case of climate change, it’s about 27 years if you assume the cover-up is perpetrated by only published climate scientists—and just four years if you assume it includes the broader scientific community.

The author, David Robert Grimes, found similar maximum life spans for a few other prominent conspiracy theories:

Grimes, PLOS 2016

Let’s pick, somewhat arbitrarily, preeminent climatologist James Hansen’s 1988 testimony to Congress about global warming as the beginning of the great fraud. According to Grimes’ formula, climate change would have been publicly outed as a hoax by 1992 if it were carried out by a broad coalition of scientific organizations. And it would have been exposed by 2015 if it were carried out only by published climate scientists. Unless I missed something, that didn’t happen. (Sorry, the “Climategate” emails definitely don’t count.)

conspiracy chart

Here’s how long it would take for four big conspiracies to fall apart: (a) moon landing hoax, (b) climate change hoax, (c) vaccination conspiracy, and (d) suppression of a cure for cancer. Grimes, PLOS 2016.

Grimes’ model is based on the statistical probability that one person within the conspiracy (one climate scientist, for example) would intentionally or accidentally let slip the truth. The odds of that happening go up as the number of people involved in the conspiracy increase—hence the shorter life span for the climate fraud if it involved broad scientific organizations (whose membership Grimes totals at more than 400,000). To help in that analysis, Grimes studied a few actual conspiracies, including the National Security Agency’s widespread spying on US citizens that was exposed by Edward Snowden.

Anyway, climate change is not a hoax. And we did land on the moon. And there isn’t a hidden cure for cancer. And you should go get your vaccinations, dammit.

H/T: The Skeptics Guide to the Universe

More Mother Jones reporting on Climate Desk

HERE ARE THE FACTS:

Our fall fundraising drive is off to a rough start, and we very much need to raise $250,000 in the next couple of weeks. If you value the journalism you get from Mother Jones, please help us do it with a donation today.

As we wrote over the summer, traffic has been down at Mother Jones and a lot of sites with many people thinking news is less important now that Donald Trump is no longer president. But if you're reading this, you're not one of those people, and we're hoping we can rally support from folks like you who really get why our reporting matters right now. And that's how it's always worked: For 45 years now, a relatively small group of readers (compared to everyone we reach) who pitch in from time to time has allowed Mother Jones to do the type of journalism the moment demands and keep it free for everyone else.

Please pitch in with a donation during our fall fundraising drive if you can. We can't afford to come up short, and there's still a long way to go by November 5.

payment methods

ONE MORE QUICK THING:

Our fall fundraising drive is off to a rough start, and we very much need to raise $250,000 in the next couple of weeks. If you value the journalism you get from Mother Jones, please help us do it with a donation today.

As we wrote over the summer, traffic has been down at Mother Jones and a lot of sites with many people thinking news is less important now that Donald Trump is no longer president. But if you're reading this, you're not one of those people, and we're hoping we can rally support from folks like you who really get why our reporting matters right now. And that's how it's always worked: For 45 years now, a relatively small group of readers (compared to everyone we reach) who pitch in from time to time has allowed Mother Jones to do the type of journalism the moment demands and keep it free for everyone else.

Please pitch in with a donation during our fall fundraising drive if you can. We can't afford to come up short, and there's still a long way to go by November 5.

payment methods

We Recommend

Latest

Sign up for our free newsletter

Subscribe to the Mother Jones Daily to have our top stories delivered directly to your inbox.

Get our award-winning magazine

Save big on a full year of investigations, ideas, and insights.

Subscribe

Support our journalism

Help Mother Jones' reporters dig deep with a tax-deductible donation.

Donate