WHO

World Health Organization Won’t Back Down From Study Linking Monsanto to Cancer

The scientists behind a recent World Health Organization study which concluded the herbicide glyphosate “probably” causes cancer, say they stand behind their assessment. The comments come in response to criticisms from Monsanto Co., who said the study was based on “junk science”. The main ingredient in Monsanto’s Round Up product is glyphosate. Monsanto executives said they are reviewing their options as they move forward.

Aaron Blair, a scientist emeritus at the National Cancer Institute and lead author of the study, told Reuters,“There was sufficient evidence in animals, limited evidence in humans and strong supporting evidence showing DNA mutations and damaged chromosomes.” The WHO’s International Agency for Research on Cancer (IARC) published their study of glyphosate on March 20, finding that the popular herbicide may contribute to non-hodgkins lymphoma.

IARC report was published in The Lancet Oncology detailing evaluations of organophosphate pesticides and herbicides. The report concluded that there was “limited evidence of carcinogenicity in humans for non-Hodgkin lymphoma.” The evidence for this conclusion was pulled from studies of exposure to the chemical in the US, Canada and Sweden published since 2001.

The researchers found “convincing evidence that glyphosate can also cause cancer in laboratory animals.” The report points out that the United States Environmental Protection Agency (US EPA) had originally classified glyphosate as possibly carcinogenic to humans in 1985. The IARC Working Group evaluated the original EPA findings and more recent reports before concluding “there is sufficient evidence of carcinogenicity in experimental animals.” Despite the WHO’s findings, the EPA approved Monsanto’s use of glyphosate as recently as 2013.

Read more