Free Republic
Browse · Search
General/Chat
Topics · Post Article

Skip to comments.

What the Best Science Says About Glyphosate
RealClear Science ^ | 24 Mar, 2026 | Michael Dourson , Richard Williams

Posted on 03/25/2026 6:49:03 AM PDT by MtnClimber

President Trump recently signed an Executive Order that expands U.S. production of glyphosate, a herbicide contained in commercial and domestic weed killers, such as Roundup.

Glyphosate has been rigorously tested in more than 2,000 studies, including the U.S. National Cancer Institute’s large Agricultural Health Study, and has been used by farmers and home gardeners for more than 50 years. Yet some environmental advocates and other groups contend it causes cancer, specifically non-Hodgkins Lymphoma.

This outcry stems primarily from a 2015 hazard assessment by the International Agency for Research on Cancer’s (IARC), a semi-autonomous agency of the World Health Organization, which concluded that glyphosate “probably” causes cancer.

That finding has also fueled mass tort litigation against Bayer/Monsanto, the company that produces glyphosate, resulting in thousands of lawsuits and billions of dollars in settlements. It should be pointed out that IARC looks at hazard (the potential to cause cancer under any circumstances) rather than risk (the likelihood of cancer occurring under real-world exposure levels)—leading to classifications that many experts feel cause unnecessary public alarm.

The IARC decision has been criticized by scientists and regulatory bodies on several grounds. First, it lacked transparency: meetings were by invitation only, and members were told not to discuss proceedings externally. Second, it excluded key studies finding no cancer link—most notably the National Cancer Institute’s Agricultural Health Study of 54,000 farm workers, which found no significant association. When omitted from combined analyses, the glyphosate-cancer relationship grew significantly; a Reuters investigation found that many other null-result studies were also edited out. Third, conflicts of interest tainted the panel: Christopher Portier, a special IARC advisor, reportedly signed a lucrative consulting contract with law firms suing Monsanto shortly after the report’s release. The animal data fared no better: Statistician Robert Tarone testified before Congress that IARC cherry-picked positive

(Excerpt) Read more at realclearscience.com ...


TOPICS: Business/Economy; Food; Science
KEYWORDS: 2015; bayer; bayermonsanto; christopherportier; fentoncommunications; glyphosate; iarc; monsanto; ncia; portier; roundup; studies; weedkiller; who
Navigation: use the links below to view more comments.
first previous 1-2021-4041-6061-73 next last
To: Newbomb Turk
They changed to formula and do not use the glyphosate anymore.

41 posted on 03/25/2026 9:19:30 AM PDT by Falcon4.0
[ Post Reply | Private Reply | To 13 | View Replies]

To: MtnClimber

“environmental advocates and other groups”

I tend towards organic vegetables and grass-fed beef. That’s a personal choice. I’m glad we have options at the grocery store.

As for prior beliefs, I don’t side with either corporations or environmentalists.

I’ve read that the EPA assumes (or assumed) that relationships run through the origin. So, if they have one X,Y data point, say concentration and harm, they ASSUME a straight line through the origin. That seems reasonable, no concentration suggests no harm. However, that is just an assumption and could be wrong for several reasons.

While too much selenium is toxic, a little is good for you. While too much of an herbicide might correlate with a particular disease, absence of the herbicide probably does not mean absence of that disease.


42 posted on 03/25/2026 9:45:38 AM PDT by ChessExpert (Infidels of the world unite against the evil that is Islam.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: MtnClimber

In farm country, we just buy the real thing, not watered down consumer Roundup.
It kills buckthorn like no other product. Use PPE, spray on calm days, it’s the best weed killer out there.


43 posted on 03/25/2026 10:29:42 AM PDT by Fireone (1. Avoid crowds 2.Head on a swivel 3.Be prepared to protect & defend those around you 4.Avoid crowds)
[ Post Reply | Private Reply | To 1 | View Replies]

To: piasa

What BS is this?


44 posted on 03/25/2026 10:42:17 AM PDT by 9YearLurker
[ Post Reply | Private Reply | To 35 | View Replies]

To: MtnClimber

I use it carefully where necessary, but I dxnm sure don’t bathe in it!


45 posted on 03/25/2026 12:32:04 PM PDT by Nervous Tick (Hope, as a righteous product of properly aligned Faith, IS in fact a strategy.)
[ Post Reply | Private Reply | To 2 | View Replies]

To: bert

>> What America needs is a spray on lawyercide

👍🏻😂


46 posted on 03/25/2026 12:34:38 PM PDT by Nervous Tick (Hope, as a righteous product of properly aligned Faith, IS in fact a strategy.)
[ Post Reply | Private Reply | To 16 | View Replies]

To: 9YearLurker

Hardly. I use the ACS. Studies do not show it to be deadly. The problem is when you do not use your proper safety ware. that help you. Using it around children when in your yard. No. There is billions set aside as this is the problem with American courts. Look at Red # 2, I think is the product. BPA for bottles Ridiculous.


47 posted on 03/25/2026 6:13:42 PM PDT by mfish13 ( )
[ Post Reply | Private Reply | To 33 | View Replies]

To: mfish13

Spare me. Red dye is no comparison and the ACS is an industry shill organization.


48 posted on 03/26/2026 1:22:08 AM PDT by 9YearLurker
[ Post Reply | Private Reply | To 47 | View Replies]

To: catnipman; All

Nope...RoundUp ditched the Glyphosate last year or the year before (they went “Diquat”):

“Active Ingredients:
Triclopyr, triethylamine salt ... 2.50%
Fluazifop-P-butyl ... 2.00%
Diquat dibromide ... 1.50%”

https://roundup.com/en-us/shop/driveway-patio-weeds/roundup-weed-and-grass-killer-concentrate/5376701.html

I switched to the Tractor Supply Glyphosate about 4 years ago...much cheaper. I have parts of 14 acres that need weed control.

https://www.tractorsupply.com/tsc/product/farmworks-grass-weed-killer-41-glyphosate-concentrate-2-1-2-gal-1044305


49 posted on 03/26/2026 1:32:46 AM PDT by Drago
[ Post Reply | Private Reply | To 18 | View Replies]

To: 9YearLurker

Yeah. The ACS is a shill/ Spare me.


50 posted on 03/26/2026 5:36:48 AM PDT by mfish13 ( )
[ Post Reply | Private Reply | To 48 | View Replies]

To: mfish13

Come on, pal: https://www.amazon.com/Concentrate-Glyphosate-Gallon-Systemic-Herbicide/dp/B007XZ84O4

And yes, they are. Heavily funded.


51 posted on 03/26/2026 7:36:35 AM PDT by 9YearLurker
[ Post Reply | Private Reply | To 50 | View Replies]

To: Drago

that roundup weed and grass killer is “fake” roundup sold for an exorbitant price in big box stores ... all of the big box lawn chemicals are pre-diluted and are mostly water and are ridiculously expensive for anyone with more than a postage-sized lot ...

here’s examples of the real deal roundup glysophate:

https://www.zoro.com/roundup-non-selective-vegetation-killer-25-gal-roundup320/i/G5564785/

https://www.google.com/search?q=roundup+promax+ingredients&oq=roundup+promax+ingredients

https://diypestcontrol.com/roundup-pro-concentrate

https://www.google.com/search?q=roundup+pro+condentrate+ingredients

btw, it’s way cheaper to buy super concentrated generic glysophate from a farm supply store and dilute it oneself rather than buy roundup-branded glysophate and/or the pre-diluted stuff sold in hardware stores ... actual farmers don’t buy their farm chemicals from home depot, lowes, or ace hardware ...


52 posted on 03/26/2026 7:51:48 AM PDT by catnipman ((A Vote For The Lesser Of Two Evils Still Counts As A Vote For Evil))
[ Post Reply | Private Reply | To 49 | View Replies]

To: 9YearLurker

If used properly there are no issues. If you douse it on exposed skin, then there are problems. The Red dye banned in the US is still used in Canada.


53 posted on 03/26/2026 10:02:01 AM PDT by mfish13 ( )
[ Post Reply | Private Reply | To 51 | View Replies]

To: MtnClimber

Use protective clothing and don’t douse yourself and it’s fine.


54 posted on 03/26/2026 10:05:04 AM PDT by 1Old Pro
[ Post Reply | Private Reply | To 1 | View Replies]

To: Newbomb Turk

“ I have used RoundUp for years but I don’t feel like it works like it used too.”

What’s labeled Roundup in retail stores isn’t Roundup anymore !!!!!

It doesn’t have glyphosate !!!

They still call it Roundup which I think is a scam.

You can buy glyphosate (which is what Roundup was for decades), but it has a different name.


55 posted on 03/26/2026 10:10:01 AM PDT by HereInTheHeartland (“I don't really care, Margaret.””)
[ Post Reply | Private Reply | To 13 | View Replies]

To: mfish13

Many, many studies show the dangers to those who haven’t been dousing their skin with it.


56 posted on 03/26/2026 10:45:13 AM PDT by 9YearLurker
[ Post Reply | Private Reply | To 53 | View Replies]

To: catnipman

Yeah, I buy the “Tractor Supply” generic version and mix. (Way cheaper). I forgot about the farmer/”Pro” versions that “RoundUp” has...all that Lowe’s/Home Depot/Ace has is the “Diquat” kinda lame “homeowner version”. A company local to FR HQ has it available too:

https://www.montereylawngarden.com/about/

Thanks.


57 posted on 03/26/2026 11:57:54 AM PDT by Drago
[ Post Reply | Private Reply | To 52 | View Replies]

To: Drago

we have a local farm supply chain called “Wheelers” that sells ag chemicals at rock bottom prices ... and then there’s Agfinity down the road that sells fertilizer and such by the truck and tanker load ...


58 posted on 03/26/2026 12:40:04 PM PDT by catnipman ((A Vote For The Lesser Of Two Evils Still Counts As A Vote For Evil))
[ Post Reply | Private Reply | To 57 | View Replies]

To: MtnClimber
Farmers have used glyphosate for decades. Farmers live longer than the general population. Doesn't mean it causes them to live longer, just that it doesn't stop them.

That won't stop ambulance chasing lawyers and greedy people hoping to cash in from suing.

59 posted on 03/26/2026 12:48:57 PM PDT by Varda
[ Post Reply | Private Reply | To 2 | View Replies]

To: MtnClimber
BTW - I remember reading a report given to the UN on a pesticide that was banned worldwide. It had caused deaths in several countries. Once you got into the case studies you found that most people had committed suicide with it .
60 posted on 03/26/2026 12:52:13 PM PDT by Varda
[ Post Reply | Private Reply | To 1 | View Replies]


Navigation: use the links below to view more comments.
first previous 1-2021-4041-6061-73 next last

Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.

Free Republic
Browse · Search
General/Chat
Topics · Post Article

FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson