At least three studies, in the U.S., Canada and Sweden, have linked glyphosate exposure to the disease, and in 2015, the World Health Organization's International Agency for Research on Cancer found glyphosate to be a 'probable' cause of cancer in humans. California's state environmental protection agency has also declared it a probable carcinogen.

In this quote, Erin Brockovich is referencing studies that have linked glyphosate, a widely used herbicide, to cancer. She points out that research conducted in the U.S., Canada, and Sweden has shown a connection between glyphosate exposure and the development of cancer. This highlights the growing body of scientific evidence suggesting that this chemical may pose significant health risks.

Brockovich further refers to the findings of the World Health Organization's International Agency for Research on Cancer (IARC), which in 2015 classified glyphosate as a "probable" cause of cancer in humans. This assessment lent credibility to the mounting concerns over glyphosate’s safety and led to increased public awareness and calls for regulation. The quote also touches on California's state environmental protection agency, which has echoed this conclusion, declaring glyphosate a probable carcinogen.

The mention of these studies and health agencies emphasizes the growing scientific consensus around the potential dangers of glyphosate. Brockovich, known for her environmental advocacy, draws attention to the public health implications of widespread chemical use, suggesting that the evidence is compelling enough to warrant further scrutiny and regulatory action. The reference to these studies underscores the importance of scientific research in shaping public health policies.