How to deal with science deniers
What the overwhelming success of California's vaccination law means for the fight against climate change
How do you persuade climate deniers to believe in science? For the past several decades, as increasingly unhinged conspiracy theories have become inalterable Republican Party dogma, political scientists and activists have fretted about how to change their minds, and make the GOP like every other conservative party in the developed world. Various strategies in studies have not worked well at all.
But there is a different, appealingly simple solution to vaccine or climate denialism and other crank beliefs that create public policy emergencies: Just steamroll them with state power.
California provides an example of this, both in motivation and in execution. Only a couple years ago, it was a festering hotbed of vaccine-preventable diseases, because it had relatively lenient rules for avoiding vaccination for children and a bad case of vaccine denial, especially in certain communities. The result, as one might have predicted, was several outbreaks of measles — including a notorious one in Disneyland that gained national attention.
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In response, California dramatically tightened up its vaccine rules. The major lever for enforcing vaccination is school attendance, and the state government ended all non-medical personal exemptions for children to attend public school. (Some people are allergic to vaccines — but that only increases the importance of everyone else getting their shots, so that people who can't be vaccinated can still be protected by herd immunity, which takes effect at around 95 percent vaccination.) As of mid-2015, every child without a doctor's note had to have their shots or be forbidden from attending school.
As The New York Times reports, the result was a tremendous increase in the vaccination rate:
Now, a cautionary note is in order. There ought to be a high bar for simply shoving people like this. In a free society, people ought to be able to live as they choose — so long as that is practicable for a similar freedom for everyone else.
California's vaccination law cleared that bar. While a sizable number of parents were simply coerced into getting shots, it was unquestionably worth doing. Vaccine denial is not some harmless nonsense, like flat Earth conspiracies or other silly ideas. Measles is a serious, extremely contagious disease that used to kill hundreds of thousands of people annually around the world. Whooping cough (another formerly rare disease that has made something of a comeback thanks to vaccine cranks) is horrifically unpleasant and can easily kill babies who catch it.
The case for California's policy was also much strengthened by the overwhelming scientific evidence that vaccines work well, with minimal side effects. The few anti-vaccine studies that have been produced turn out to be weak, poorly designed, and in the case of one notorious case study from Andrew Wakefield, actually fraudulent — prompting an official retraction and Wakefield being stripped of his medical license.
Climate policy is another area in which the views of deniers simply deserve no hearing whatsoever. Climate change is already causing large damage to world society, and we have very strong reason to think it will get much, much worse in the future. The scientific consensus is as strong as it could realistically be for future predictions about such a complicated system. The emission of greenhouse gases that cause climate change must be stamped out as fast as possible.
Luckily for President Trump and virtually every other Republican, climate policy doesn't require any injections. The required top-to-bottom overhaul of the American economy will be rather painful for a few people — executives and large shareholders of fossil fuel companies especially, and the ultra-wealthy in general to a lesser extent — but the vast majority of people will simply be nudged into moderately different, less energy-intensive lifestyles. The ones who will take a serious blow are among the most able to absorb it.
People should continue to press the arguments for bold policy — if nothing else, to convince elite Democrats to actually behave according to their stated views — but if that doesn't bring Republicans over, the left should feel completely comfortable stampeding over their conspiratorial objections. We simply don't have time to indulge this nonsense.
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Ryan Cooper is a national correspondent at TheWeek.com. His work has appeared in the Washington Monthly, The New Republic, and the Washington Post.
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