New Zealand scientists have reviewed the evidence on the weedkiller glyphosate and announced it is “unlikely” to be carcinogenic and should not be classified as a mutagen or carcinogen under the HSNO Act. Poisons expert Dr Wayne Temple and his colleague from the National Poisons Centre, Michael Beasley, carried out the review, which was commissioned by the Environmental Protection Authority (EPA).

Glyphosate is the active ingredient in chemical company Monsanto’s Roundup and underpins much of New Zealand’s – and the world’s – food production. It is also widely used in parks and gardens.

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