Does Monsanto's Roundup cause cancer? Trial highlights the difficulty of proving a link
- Written by Richard G. "Bugs" Stevens, Professor, School of Medicine, University of Connecticut

Does glyphosate, the active ingredient in the widely used weedkiller Roundup, cause non-Hodgkin lymphoma? This question is at issue now in a lawsuit in San Francisco Superior Court. Hundreds more claims have been cleared to proceed in a federal multi-district lawsuit.
Much of this litigation is based on a 2015...
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