Fear of Science and Technology

Last week I attended a presentation on GMOs by a Purdue University professor in the Department of Botany and Plant Pathology. He was very knowledgeable with impressive credentials, but he said things some people didn’t want to hear. 

The primary point of contention was that a vast majority (near 90%) of scientists agree that genetically modified plants are safe to eat, but only 37% of the general public agree. Somehow when a majority of scientists are cited as agreeing with man-made global warming, everyone is so convinced that they will try to cut off any further discussion; they shudder to think of the US pulling out of the Paris Agreement; but when a majority of scientists say that GMOs are safe to eat, they must all be working for Monsanto. 

The difference is that climate change is not as scary as eating something potentially harmful. The resistance arises from a fear of something that sounds very unnatural.

However, the speaker pointed out that farms, and agriculture in general, is not natural. Even in backyard gardens, people remove the weeds that naturally grow to plant seeds that have been developed through thousands of years of selection. As nature caused genetic modifications in plants, people preserved those with the best characteristics: size, juiciness, drought-resistance. Humans have been eating and enjoying unnatural foods for millennia (fresh from the garden).

Furthermore, the introduction of plant science has enabled great leaps forward in agriculture, allowing farmers around the world to feed the growing population, now 7.6 billion. For example, the average yield of corn per acre in the US in 1900 was 25.9 bushels per acre. That increased to 77.4 by 1965 and to 137.0 by 2000. The yield in 2017 was 176.6 bushels per acre. The application of science increased the amount of corn by almost 7 times when it would have been impossible to increase the acreage.

But the myth exists that natural automatically equates to good and healthy, and promoters of food and supplements use that to our overall disadvantage.  Another glaring example of this came across the Internet a few weeks back.

A product called kraton is being aggressively promoted as a possible solution to the opioid epidemic. They say it is harmless and no more addictive than coffee. But there is “no reliable evidence that kratom can help addicts safely wean themselves off of heroin or prescription opioids, or that it offers any other therapeutic benefit, according to the FDA, which has issued a public health warning about its potential for addiction."

Various scientific studies show that it causes withdrawal symptoms similar to those of opioids, and it has been linked to episodes of psychosis, seizures, and to deaths, along with mild, moderate, and life-threatening medical outcomes reported in 660 phone calls to U.S. poison control centers from 2010 through 2015.“The CDC has issued four reports of Salmonella infection outbreaks linked to contaminated products.”

But here is how it’s promoted. It is marketed as a dietary supplement that grows naturally in Thailand, Malaysia, Indonesia, and Papua New Guinea with friendly sounding brand names like Botany Bay, Enhance Your Life and Divinity. They claim it helps overcome opioid addiction and withdrawal, lowers pain and blood pressure, prevents cancer and reduces nerve damage caused by strokes. (There is no evidence for any of these claims.)

Meanwhile Americans continue to buy it as the industry association fights government attempts to take it off the market. Again it’s a matter of valid science vs. perceptions, of critical thinking vs. feelings. It all comes down to that persistent misconception that natural stands for guaranteed goodness. (The Salmonella that contaminated some samples was also natural!)