Tag Archives: environmentalism

Glyphosate – The New Bogeyman

steven_novellaby Steven Novella via Science-Based Medicine

There is an ideological subculture that is motivated to blame all the perceived ills of the world on environmental factors and corporate/government malfeasance. Often this serves a deeper ideological drive, which can be anti-vaccine, extreme environmentalism, or anti-GMO. Screen Shot 2015-01-06 at 6.09.56 PMThe latest environmental bogeyman making the rounds is glyphosate, which is being blamed for (you guessed it) autism.

Glyphosate is the active ingredient in the herbicide Roundup. It has been widely used for about 40 years, and with the introduction of GM crops that are Roundup resistant, its use has increased significantly in the last 20 years. It has therefore become a popular target for anti-GMO fearmongering.

round upGlyphosate is one of the least toxic herbicides used. It inhibits the enzyme 5-enolpyruvylshikimic acid-3-phosphate synthase which interferes with the shikimic pathway in plants, resulting in the accumulation of shikimic acid in plant tissues and ultimately plant death. The enzyme and pathway do not exist in animals, which is why toxicity is so low. Still, chemicals can have multiple effects and so toxicity needs to be directly measured and its epidemiology studied.

A systematic review published on 2000 found:

Experimental evidence has shown that neither glyphosate nor AMPA bioaccumulates in any animal tissue. No significant toxicity occurred in acute, subchronic, and chronic studies.

and

Therefore, it is concluded that the use of Roundup herbicide does not result in adverse effects on development, reproduction, or endocrine systems in humans and other mammals. For purposes of risk assessment, no-observed-adverse-effect levels (NOAELs) were identified for all subchronic, chronic, developmental, and reproduction studies with glyphosate, AMPA, and POEA.

As pesticides go, glyphosate has very low toxicity, and any dose a person is likely to get exposed to is well below the safety limits.

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Earth Day Festival 2014: How was the Woo?

by The Locke via The Soap Box

Last Sunday, April 26, I went down to my town’s annual Earth Day Festival to check out everything that was there, just like I do every year.

Last year I was appalled by the amount of pseudoscience and alternative medicine woo mixed in with all of the legitimate booths and displays promoting legitimate environmental causes and advice [read about it here] to the point where they pretty much overshadowed what the Earth Day festival was suppose to be about.

The worst offender last year of course was a booth promoting Anti-GMO conspiracy theories.

Fortunately that person wasn’t back this year, but still there were people back again promoting the same woo, including the Astrology and Tarot Card reader from last year  .  .  .

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.  .  .  and the chiropractors from last year are back as well  .  .  .

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.  .  .  but I have some new ones for this year, starting with this one:

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Now I admit at first glance this one wasn’t that bad, even through it had nothing to do with environmentalism.

Creating art can help relax a person and cut down on stress. That’s the good part about what’s being presented there.

Then there’s the woo.

They also promote past life regression and trauma healing, clearing of curses, negative spirits, and other stuff of the like, and how to protect yourself from such things, all while using nature and spiritual energy.

In other words instead of addressing any real things that can cause stress in a person’s life, they’re just claiming that it’s supernatural forces, and use “techniques” they claim to get from Shamanism to “cleanse” a person of these supernatural forces.

The next offender of promoters of woo that I saw there was  .  .  .

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