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GMO crop pesticide use in USA soybeans and corn – just the facts

The safety of GMO crops to humans, animals and the environment has been well established. The scientific consensus clearly states that consuming bioengineered foods has no effect on your health. Clearly, you can grab an ear of GMO corn, put some butter and a sprinkle of salt on it, and you will eat it with no negative health effects. And you’ll have a giant smile across your face.

But the anti-GMO forces have attempted to move the target. They have tried to claim that GMO crops are less productive and cost more to produce. That’s beyond the scope of this article, though there is some pretty good evidence that there is higher yield for bioengineered crops.

One of the more annoying aspects of the anti-GMO complains is conflating the genetically modified crop with the GMO crop pesticide. Invariably, some someone will post a meme or discuss a trope that evolves from GMO food to glyphosate, the herbicide known as RoundUp. the conversation will lead to ridiculous conclusions that Monsanto (who manufactures glyphosate) is killing everyone by forcing farmers to use RoundUp with Monsanto’s own GMO crops which are resistant to glyphosate. It’s all Monsanto all the time when discussing GMO crop pesticide use.

A new paper was published last month that may or may not give us more information about pesticide use with GMO crops.

Read More »GMO crop pesticide use in USA soybeans and corn – just the facts

dr. oz

Dr. Oz falls for the overhyped and debunked GMO corn study

A few weeks ago, Gilles-Eric Séralini and his homeopathy loving coauthor published an article in Food and Chemical Toxicology that concluded that glyphosate (known as Roundup)-resistant NK603 GMO corn, developed by Monsanto, causes severe diseases such as tumors in rats. And usual anti-science websites bought into this nonsense, including the TV medical practitioner, Dr. Oz.

It’s time to remind everyone that the Séralini study was bogus, and that Dr. Oz is also bogus. Here we go.

Read More »Dr. Oz falls for the overhyped and debunked GMO corn study

GMOs cause cancer

Séralini’s controversial GMOs cause cancer article retracted

In 2012, the interwebs exploded because of an article (pdf) published in Food and Chemical Toxicology by Gilles-Eric Séralini et al. that attempted to show that GMOs cause cancer in rats fed genetically modified corn which is resistant to the herbicide Roundup. They also found similar health problems in rats fed the herbicide alone (along with non-GM feed). The rodents experienced hormone imbalances, along with more and larger mammary tumors, earlier in life, than rats fed a non-GM diet. The authors claimed that the GM- or pesticide-fed rats also died earlier.

Séralini et al. stated that this is the first time GMO corn has been tested for toxicity throughout a rat’s lifespan even though this type of GM corn accounts for more than half of the US crop.

Séralini’s article could have been an important part of the discourse regarding the safety of GMOs – except for a few important problems. Scientists across the world criticized the study for its bad study design, bad statistics, and overhyping of the results.

I personally found the study lacking in basic toxicology methodology, like providing us with dose-response studies, that show us at what level of consumption of the GMO corn would have an effect (if there is one). Of course, Séralini used so few rats in his “study” that it would have been difficult if not possible to develop a dose response.

Read More »Séralini’s controversial GMOs cause cancer article retracted

Simple math – the dose makes the poison

If you spend any amount of time on the internet researching science and pseudoscience, you’ll find alarming claims about toxic or poisonous substances in our foods, vaccines, air, water, and so much else. And then you’ll find a lot of people (myself included) who try to present science-based evidence that these substances are neither toxic nor poisonous.

Generally, the pseudoscience argument proceeds along the lines of “this unpronounceable chemical is going to cause cancer.” And the science (read scientific skeptic) side says “wrong!” Or something like that.

Paracelsus, a 16th century Swiss German physician, alchemist, astrologer, is traditionally thought to have founded the discipline of toxicology, an important branch of medicine, physiology, and pharmacology. Paracelsus wrote one of the most important principles of toxicology:

All things are poisons, for there is nothing without poisonous qualities. It is only the dose which makes a thing poison.

In other words, if you’re speaking about substances in foods or vaccines or anything, the most important principle is that the dose makes the poison (or toxin). Everything that we can consume or breathe is potentially toxic, but what is the most overriding principle must be the dose.Read More »Simple math – the dose makes the poison

Refusers misuse GMO rice research data

Scientific American blared a headline that “Genetically Modified Crops Pass Benefits to Weeds,” which claimed that the results of a study of GMO rice indicated that the rice might pass certain genetic information to “weeds,” which will then get an unintended biological fitness increase. They stated that the GMO rice could pass bioengineered genes from the GMO rice to the weeds.

The underlying peer-reviewed article, trumpeted by Scientific American, may not say what they think it says. In fact, in my review (below), I’m not sure it was very well done.

Read More »Refusers misuse GMO rice research data

Arguments that GMO opponents should delete from their brains

keep-calm-gmo-safe-1From my perspective as a trained scientist, skeptic and observer of political debates, there are four scientific issues that have wandered into the realm of political debate: evolution, climate change, vaccines and genetically modified organisms (GMOs) generally with regards to food and agriculture.

Evolution and human caused climate change (or sometimes called anthropogenic global warming, AGW) are scientific facts supported by literally mountains of data. The arguments presented by evolution deniers is easily refuted. And the myths pushed by global warming deniers are also quickly debunked. Both of these have become a part of the political conversation, with the evolution and climate change deniers being almost exclusively made up of conservative political groups, including Republicans in the USA. There is no debate about these two facts from a scientific point of view, unless someone cherry picks scientifically weak papers published in bad journals to confirm a bias against these scientific facts.

Vaccines aren’t really a scientific principle per se, but the support for the safety and effectiveness of vaccines is pretty much settled by the vast majority of scientists who actually have experience, research and education in the key fields of science related to vaccines, such as epidemiology, immunology, microbiology, virology, etc. etc. The fact that about 95% of children in developed countries (including the USA and most of Europe) indicates that there isn’t even a “political debate” except some blathering and noise from a tiny lunatic fringe. And the 5% of children who aren’t vaccinated don’t exclusively represent active vaccine deniers–most of these unvaccinated children either cannot be immunized for some health reason, have procrastinating parents, or have parents who may be too poor to get their children vaccinated, even if it’s free to most people in developed countries. The only reason most of us get worked up about the approximately 1-2% of parents who actively resist vaccines is because we think all children should be protected from vaccine-preventable diseases.

On the other hand, GMOs, at some levels, should have some level of public discourse and debate. For example, glyphosate (Monsanto’s RoundUp) resistant crops have raised public concerns, and despite some awful scientific evidence that has been solidly ridiculed in the scientific community, along with solid scientific studies that show no correlation (let alone causation) between human health and glyphosate exposure (see this, this, and this), excessive use of pesticides frighten people.

Personally, I can buy into certain arguments against GMOs. For example, I think that monoculture agriculture is extremely susceptible to an introduced or novel pest, which could be devastating to our food supply. I am also concerned about certain unintended consequences such as evolved pest resistance (but then again this has been a war since the first day genetic modification occurred 10,000 years ago), lower crop productivity, or other issues. So far, science hasn’t uncovered any problems so far, so there’s that.

If the anti-GMO environmentalist community wants to engage in a reasoned conversation about GMOs with those of us who have scientific evidence supporting our discussion points, then they have to quit using five bad arguments, which they seem to pull out of the manual of science deniers everywhere. Because anti-GMO arguments use the same ridiculous “debate” strategies as those who deny vaccines, evolution and climate change. As I’ve joked more times than I care to remember, I feel as all the science deniers attend the same convention to discuss tactics and strategies. It seems ironic to me that those who are anti-GMO make the same exact points as the climate change deniers, yet those two groups have nothing in common except they are both humans.

So what are these five bad arguments? Glad you asked, so here we go.Read More »Arguments that GMO opponents should delete from their brains

Anti-GMO cult trumpets GMO genes transfer to wild rice–update

GMO_riceIt is well accepted observation that when the pseudoscience or anti-science crowd runs out of supporting evidence (usually when it’s thoroughly debunked by scientific skeptics), it has to rely upon the whole range of logical fallacies, which are errors in reasoning to support a position in an argument or debate. Because scientific skeptics (or if we’re talking about medicine, science based medicine) always demand high quality evidence to support their own claims, or alternatively demanding evidence from other making suspicious claims, the anti-science and pseudoscience pushing troupes frequently cherry pick “peer-reviewed” research to use as their “proof” for their claims. 

Cherry picking makes it appear that there a nothing but ripe beautiful cherries of evidence supporting your position. The problem is when you look at the whole basket of cherry’s you see all sorts quality. Same with peer-reviewed evidence. You may find one article that says “Point A is correct.” But what is the quality of that article? How does it fit with all the other articles that say “Point A is not only incorrect, but Conclusion B is the scientific consensus.” You can’t cherry pick one article, without understanding and analyzing the vast breadth of research in a field.

Moreover, because the pseudoscience promoters are resort to confirmation bias, always looking for evidence to support their beliefs rather than seeing what the evidence supports, they ignore the vast majority of evidence or tend to misinterpret the evidence. So, when you read some blog post or pseudo-news article about a published scientific article that says GMO’s are dangerous, you need to dig beyond the headlines, and head right to the scientific source to determine what is really being said. And this happened recently.Read More »Anti-GMO cult trumpets GMO genes transfer to wild rice–update

GMO corn causes cancer–Myth vs. Science (recent news)

Background

Genetically modified crops are foods derived from genetically modified organisms (GMOs), and all types of agricultural breeding induces genetic modification, but in general, GMO usually implies actual manipulation of the genes. The major controversy surrounds the use of DNA recombination-introducing genes from one species into another. Despite all of this controversy, there is an amazing lack of data that shows that GMO foods are unsafe. In fact, there are secondary reviews that show it is safeRead More »GMO corn causes cancer–Myth vs. Science (recent news)