|Photo by Mike Mozart.|
One of the world's most popular weed killers – and the most widely used kind in the US – can "probably" cause cancer, according to United Nations health chiefs.
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The World Health Organisation’s (WHO) cancer arm has announced that best-selling 'Roundup', produced by Monsanto, contains an active ingredient that is "classified as probably carcinogenic to humans".
Amateur gardeners and professional farmers have been urged to “think very carefully” about using the popular herbicide after a report was published in clinical journal Lancet Oncology on Friday.
The report revealed glyphosate was “classified as probably carcinogenic to humans”.
It also said there was "limited evidence" that the key ingredient was carcinogenic in humans for non-Hodgkin lymphoma.
Monsanto, the world's largest seed company, said scientific data does not support the conclusions and called on WHO to hold an urgent meeting to explain the findings.
The report was also posted on the website of the International Agency for Research on Cancer (IARC), the France-based arm of the WHO.
The evidence for the organisation’s conclusion was from studies of exposure, mostly agricultural, in the United States, Canada, and Sweden that were published since 2001.