GLP Podcast: EPA’s political weedkiller rules; GMO-derived beer on sale; Anti-glyphosate webinar review

The Biden Administration just overruled its own scientists at the EPA, mandating regulations that effectively ban the low-risk, effective weedkiller atrazine. Why? Beer made with genetically engineered yeast went on sale in San Francisco recently; the traditionally anti-GMO Bay Area has welcomed these biotech-enhanced brews with open arms. Has the herbicide glyphosate saturated our environment? A panel of organic-food activists made that case during a July 19 webinar. Let’s take a closer look at their claims.

Join geneticist Kevin Folta and GLP contributor Cameron English on episode 179 of Science Facts and Fallacies as they break down these latest news stories:

Have farmers “drenched” their crops in glyphosate, allowing the weedkiller to permeate our environment? That was the theme of a recent webinar featuring Carey Gillam, Kelly Ryerson (the self-described “Glyphosate Girl”) and other anti-pesticide activists. The panel featured no dissenting voices and the speakers took no questions. A careful review of the facts indicates that the panelists radically diverged from the scientific evidence.

The weedkiller atrazine has been in use since the 1950s. It’s a useful crop-protection tool for corn growers because it inhibits photosynthesis in a wide variety of weeds, but the crop itself detoxifies atrazine, mitigating its herbicidal effects. The EPA has routinely reviewed the evidence surrounding the weedkiller and re-approved its use by licensed pesticide applicators. Yet, the Biden Administration, in opposition to the EPA’s experts, has mandated restrictions that effectively ban atrazine. What has driven the administration to this decision?

Follow the latest news and policy debates on sustainable agriculture, biomedicine, and other ‘disruptive’ innovations. Subscribe to our newsletter.

Scientists have engineered yeast that give beer all sorts of exotic fruit flavors and eliminate the sour notes that can make some brews unappealing to consumers. The best part: these GMO-enhanced beverages have won consumer approval in the San Francisco Bay Area, a region of California well known for its skepticism of science. Could these beers help neutralize one of the epicenters of anti-biotech sentiment in the US?

Kevin M. Folta is a professor, keynote speaker and podcast host. Follow Professor Folta on Twitter @kevinfolta

Cameron J. English is the director of bio-sciences at the American Council on Science and Health. Visit his website and follow ACSH on Twitter @ACSHorg

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