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Petitions push feds to ban Canada’s most popular pesticide

Canada's pesticide use has increased by roughly 30 per cent in the past decade, largely because farmers and foresters are using more glyphosate. Photo by Fotokostic/Shutterstock

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The battle to ban glyphosate, Canada's most widely used pesticide, has made it to Parliament.

On Tuesday, Liberal MP Jenica Atwin tabled a petition signed by 18,385 people and environmental organizations calling for a ban on the common pesticide. She also asked the auditor general to evaluate what the government is doing to reduce pesticide use, which Canada pledged to do at the COP15 biodiversity conference last December.

Glyphosate is used in farming to control weeds and by foresters to limit the growth of lower-value deciduous trees. In 2015, the World Health Organization classified the chemical as "probably carcinogenic to humans." However, University of Guelph researcher Gregory Perry cautionned the assessment looks at whether the chemical could theoretically be linked to cancer; it does not evaluate the risk specific quantities of the chemical pose to humans, he said, meaning that if used within regulatory guidelines it can be safe. The chemical is also known to harm biodiversity.

"There is an alarming and growing body of independent scientific research proving glyphosate's harm to humans and all other life (that) Canada's regulator, the Pest Management Regulatory Agency (PMRA), is ignoring," said filmmaker Jennifer Baichwal, who co-led the petitions with Atwin and recently released a CBC documentary about the pesticide.

Glyphosate has become increasingly common in recent years, driving a roughly 30 per cent increase in pesticide sales in Canada over the past decade. Estimates by cancer research group CAREX Canada found that roughly two million people in Canada — about six per cent of the population — live in areas with high concentrations of the chemical.

The battle to ban glyphosate, Canada's most widely used pesticide, has made it to Parliament.

In 2017, the federal government reapproved the use of glyphosate until at least 2032, even as some European countries like Germany have plans to ban it or severely restrict its use. Despite these international concerns, in early 2021, federal officials proposed to increase how much glyphosate residue was allowed on commodities like lentils, peas and beans. Officials put these plans on hold following public outcry but have not indicated they will permanently reverse course.

A spokesperson for Health Minister Jean-Yves Duclos said in a statement that the government "ensure(s) that pesticides used in Canada are safe for human health, wildlife and the environment. All pesticides must undergo rigorous scientific review before being approved for sale in Canada, and they are regularly reviewed to ensure they continue to meet health and safety standards.”

Critics say Canada's departure from the more stringent glyphosate regulations developed by many of its European peers highlights the country's failure to help farmers and foresters reduce how much pesticide, including glyphosate, they use.

"The big issue is how are we going to have all-of-government support?" said Friends of the Earth Canada CEO Beatrice Olivastri. "We can't just ban pesticides and not do something different (to) support farmers."

Glyphosate is not the only pesticide environmental and health advocates say federal officials should be regulating more tightly, with many emphasizing systemic issues within the PMRA, the agency responsible for these rules. For instance, a January investigation by Canada's National Observer found the agency had downplayed its own research into the health risks of chlorpyrifos, a once-common pesticide it decided to phase out in 2021.

Olivastri would like to see the government overhaul its rules to reduce pesticide use while helping farmers stay afloat and protecting biodiversity. Canada joined dozens of countries last year when it pledged at the COP15 conference to curb its pesticide use by half by 2030.

Baichwal echoed many of these concerns in the petition she filed this week with the auditor general. The document, which remains under review, lists several questions for the ministers of environment, health, agriculture and natural resources about Canada's continued support for glyphosate and their plans to overhaul the regulatory system for Canada's pesticides.

Updates and corrections | Corrections policy

Editor's note: This story was updated to more accurately reflect the World Health Organization's assessment glyphosate could be linked to cancer.  

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