After all the fuss and angst over an IARC ruling that glyphosate (Roundup) is a “probable carcinogen” (leading to calls for a ban on the herbicide and multiple lawsuits), it turns out that important research was withheld from the panel that made the ruling.
A Reuters investigative report found that a researcher who was part of the deliberations knew of long-delayed but unpublished data from a National Cancer Institute study which showed no cancer link. Questions are also being raised about why the data was never published (the researcher claims the paper would have been too “big” if it had been included).
*The (IARC’s assessment) is at odds with other international regulators who have said the weedkiller is not a carcinogenic risk to humans. It led to a delay in Europe on a decision on whether to re-license or ban EU-wide sales of pesticides containing glyphosate. That decision is still pending. In the meantime, some countries have tightened restrictions on the weedkiller’s use in private gardens and public spaces and on crops before harvest.
In the United States, a California judge took the IARC assessment into account in a separate legal case in March when ruling that the state can require RoundUp to carry a warning label that it may cause cancer. Monsanto is now facing further litigation from hundreds of plaintiffs across the United States who say glyphosate gave them or their loved ones non-Hodgkin lymphoma, citing the IARC assessment as part of their claims.
Yet if the IARC panel experts had been in a position to take into account Blair’s fresh data, IARC’s analysis of the evidence on glyphosate would have been different, Blair acknowledged in the court documents reviewed by Reuters.*
Somehow, I doubt these new revelations will quell the Internet-fueled hysteria about Roundup, which is arguably overused, but hardly the bogeyman that anti-GMOers have made it.
This reminds me to mix up a small batch to zap my poison ivy vines this weekend (I’d use my trusty propane torch which works great on patio and sidewalk weeds, but you don’t want to inhale smoke from scorched-out poison ivy plants).