April 2016 — The Journal of Occupational and Environmental Medicine published a study concluding that herbicides including glyphosate are linked to a higher risk of cutaneous melanoma, a dangerous skin cancer.
Reference: Fortes, Cristina et al. “Occupational Exposure to Pesticides With Occupational Sun Exposure Increases the Risk for Cutaneous Melanoma.” Journal of occupational and environmental medicine vol. 58,4 (2016): 370-5. doi:10.1097/JOM.0000000000000665, https://pubmed.ncbi.nlm.nih.gov/27058477/