The World Health Organization (WHO) just declared that glyphosate, found in Monsanto's "Roundup" brand of herbicide, is possibly linked to carcinogenesis in humans. The journal Nature examined this potential link, and the attached articles provides some insights into the evidence, judgement, and the controversy.
Robb Fraley, chief technology officer at Monsanto says this announcement is a result of "cherry picking" of data and is "outraged with this assessment" in a recent statement. Monsanto is a primary supplier of the world's glyphosate. The International Agency for Research on Cancer (IARC) report in The Lancet Oncology has obviously created reaction and rebuttal from Monsanto, as they have a highly vested interest in supporting Roundup and glyphosate as safe for humans and wildlife. The evidence is limited supporting a link to cancer in humans, but the IARC says there is a higher incidence in non-Hodgkin lymphoma in those working with the herbicide#, but other evidence does not support this. The IARC cites animal studies supporting this claim, which is why glyphosate is now classified as "probably carcinogenic" in humans.
So, it seems the WHO has its reasons for announcing such an association, but it is also reasonable for Monsanto to refute the claims, both as a corporation and based on the non-conclusive evidence in humans. Still, this potential link is unsettling and it is guaranteed further studies will follow this to clarify any direct association between glyphosate and human cancer. #cancer #herbicide #monsanto #roundup
Link to IARC report in Lancet Oncology:
Guyton, K. Z. et al. Lancet Oncol. (2015) http://www.ncbi.nlm.nih.gov/pubmed/25801782?dopt=Abstract&holding=npg