398 karma · joined March 25, 2015
"The LD50 of caffeine in humans is dependent on individual sensitivity, but is estimated to be 150 to 200 milligrams per kilogram of body mass (75–100 cups of coffee for a 70 kilogram adult)"
For glyphosate: "The acute oral LD50 in the rat is 5,600 mg/kg. Other oral LD50 values for glyphosate are 1,538 to greater than 10,000 mg/kg for mice, rabbits mg/kg, and goats"
http://pmep.cce.cornell.edu/profiles/extoxnet/dienochlor-gly...
That article you linked was flawed on quite a few levels. It argued for example that France was able to reduce its levels of pesticides without using GMOs and used percentages to show the reduction, thereby arguing that GMOs are not necessary
But looking at absolute values, France had a far higher use of pesticides and insecticides and even after the reduction it is still higher than the US, although in the US herbicide use has gone up (primarily glyphosate, but that replaced other more toxic herbicides).
Greater crop yield means more efficient use of the land and resources. I agree we produce more than enough food but reducing yield is not the answer. Also we've barely scratched the surface in terms of using the potential of GE.
[1] http://weedcontrolfreaks.com/2016/10/the-tiresome-discussion...
https://drive.google.com/file/d/0B-pJR4cGo9ckUU1OQjJjcVQ4aUU...
Its basically a motion to compel an EPA guy to go under oath and sounds like the complainant had some run ins with Rowland.
The complainant, Marion, makes some claims about the effects of glyphosate without really citing any scientific evidence. Marion also claims there is a lot of evidence to back it up, but if so why not cite it?
"Your trivial MS degree from 1971 Nebraska is far outdated, thus CARC science is 10 years behind the literature in mechanisms."
So we have to take her word that Rowland didn't keep up to date with the literature? I find that hard to believe that someone would still be in a position that requires constant learning to keep their job.
Not really a smoking gun, if this is all there is
"The first red flag that there are corporate interests behind any "debunking" effort is that an actually serious finding is not discussed openly"
So which finding was not discussed properly in the link i posted?
Steven Novella thoroughly debunks this: http://sciencebasedmedicine.org/glyphosate-the-new-bogeyman/
Edit: spelling
Organic farming is restricted to naturally occurring pesticides which are often less effective than synthetic ones and so they need to be applied more often.
Also, organic yields are often lower than conventional ones, so more land may be needed to compensate. Clearing land is way more environmentally unfriendly than using pesticide, so any gains from organic techniques are nullified.
But i guess it depends on crop/climate and exact techniques
[0]http://www.science20.com/agricultural_realism/example_how_mu...
Herbicides like roundup affect a certain pathway in plants, not humans in animals.
"And pesticides are bad for people and animals in the longer term too."
Not at the concentrations that are used. The amount of residue is minuscule and modern pesticides have far less toxicity than older ones that have been phased out.
IIRC, the BT toxin only affects insects that have an alkaline digestive system. Animals and humans are unaffected as its acidic.
Actually, GMOs need less pesticides than non GMO crop. Some of them produce their own pesticide (BT corn and BT cotton).
"Pesticides are bad."
Thats kind of the point, they are bad to pests that try to eat the crop
"GMO are generally sterile"
You are confusing GMO with hybrids and no they are not sterile, the just lose vigour after a few generations, see https://en.wikipedia.org/wiki/F1_hybrid
", so you have to buy seeds every year from Monsanto. Great business model for Monsanto, not so much for the farmer."
Most farmers in the developed world buy new seed every year because of the hybrid thing, and do so because its convenient. At the end of the day its a choice the farmer makes: they could re use their own seeds and hybridise them, but for most its not worth the hassle.
You can't prove with absolute certainty that any food is safe, only what the risks are.
And yes there is a lot of real scientific and independent evidence that GMOs are no more risky than other foods.
http://www.skepticalraptor.com/skepticalraptorblog.php/the-s...
She's the one who prosecuted Aaron Swartz IIRC
"1. No genes for yield were ever installed. The current suite of biotech traits were not meant to improve yields, they were made to ensure yields. In other words, they help ag producers farm with lower costs, fewer insecticides, improved weed control and virus resistance in some cases. Same yield at lower cost = better for farmers."
https://kfolta.blogspot.co.uk/2016/10/rehashing-tired-argume...
A hazard is something that can harm potentially harm you. Risk quantifies how likely that will happen.
Edit: wording
1) The UNCTAD report that is cited actually has the following text:
"The views expressed in the articles contained in this Review are the personal views of the authors and do not necessarily reflect the views of their respective organisations and institutions."
Many of the authors have ties with the organic industry (see https://thoughtscapism.com/2015/09/21/myth-un-calls-for-smal...)
2) Organic food has less pesticides exposure.
Not necessarily as organic agriculture also uses pesticides (naturally occuring ones). Though they tend to degrade quicker than synthetic ones, they are not as effective and need to be applied more often. Also the use of copper sulfate is allowed, which doesn't biodegrade and builds up in the soil.
The following is also completely rubbish
"Yes, pesticide residues are regulated by the U.S. Food Quality Protection Act, but the tolerance levels assigned for some pesticides pose potential health risks, even though they are considered “allowable.”"
3) Organic foods are more nutritious and taste better.
Nope. The article just cherry picks a few studies. Following meta study comes to conclusion that organic food is not more nutritious
https://www.ncbi.nlm.nih.gov/pubmed/22944875
https://www.ncbi.nlm.nih.gov/pubmed/11833635
4) Organic foods help achieve biodiversity and soil fertility
Maybe on the area farmed, but it tends to not be as efficient as conventional farming, so increase acreage is needed which reduces biodiversity.
Regarding soil fertility, GMOs have actually helped thanks to no till agriculture.
5)Organic foods have no GMOs.
GMOs actually can help reduce pesticide use (but its not a silver bullet)
http://journals.plos.org/plosone/article?id=10.1371/journal....
sounds to me like an appeal to nature fallacy. The crops we grow have been modified beyond recognition from their wild counterparts. Add to that use of mutagenics to randomly mutate plant dna and that hasn't ushered any cataclysm.
That doesn't mean that there aren't any danger and you can't prove beyond doubt that any food is safe, at the end of the day its a risk vs benefit decision. The evidence shows that GE crops lead to less land use via better efficiency and reduced pesticide use.
The choice of 3rd party should be open, transparent and done by the regulating agencies.
However, from my understanding, the regulations of GMOs are much more stringent than for other types of breeding.
You can traditionally breed a potato to have high levels of solanine and i'm not sure whether regulations would stop it from going to market.
A system where the company pays for the a 3rd independent party to do the testing is desirable IMO
There is also a positive bias from industry studies due to the fact that products tested internally that don't work will not be pursued and therefore that research is not published.
The EU funded a 10 year project in that area https://ec.europa.eu/research/biosociety/pdf/a_decade_of_eu-...
The genera database can also give an indication of the funding by private and government in biotech (i think its 1/3 or 1/2, but can't find the link)
https://www.biofortified.org/portfolio/infographic-world-map...
Update: Replying to some of the comments, just want to clarify that company should pay for the testing, but the actual scientific research should be done independently. Of course the company will probably have done some initial research of their own (at least you would hope so), but it would need to be replicated independently.
Update 2: Grist covered gmos a few years back and here is the part about the regulation http://grist.org/food/the-gm-safety-dance-whats-rule-and-wha...
Except with genetic engineering, by being precise as to how and where the new genes are inserted, we are actually altering it less than with traditional breeding or mutagenics. Those types of breeding have far less testing than transgenics. We can potentially create new genes with those older methods that have never existed before and never know about it.
This is something that taleb was criticised for by biologists and geneticists (and basically his reply was "that they are idiots", yup, great argument).
"Normal food has the advantage that we already know it has no disastrous ecological consequences".
There is no such thing as normal food: Take the sweet potato. It has been altered transgenically using the agrobacterium twice in its history without human intervention. The agrobacterium is the same bacteria used when doing transgenic GMO. Basically nature beat us to it a long time ago when it comes to transgenics.
You can breed a potato the old fashion way to contain high level of solanine (which can be poisonous). Its not how the genes are altered, its what they do that is key.
"We know nothing of the proliferation that gene may have in a wild population, or how our modification will help or hamper the organism to adapt to a changing environment."
We don't know exactly, but we do know a lot more than nothing.
"we modify genes without really understanding what they really do with detail"
Except that with genetic engineering, we know precisely what they do. Ironically previous ways of changing genes are a lot more random.
Mutagenic crops devised with stuff like cobalt 60 was never tested. Also you can breed a potato to be poisonous. In the end its a case by case basis
Edit: spelling