Roundup May Have to Carry Cancer Warning in California

In California, the popular weed killer Roundup may eventually have to carry a warning that it's known to cause cancer.

As of July 7, the product's main ingredient, glyphosate, will be added to a state list of potentially cancerous chemicals. A year later, the listing could lead to a cancer warning label on the Roundup, according to state officials.

If that happens, California would be the first state to require the product to carry such a warning, the Associated Press reported.

Roundup maker Monsanto has filed an appeal after losing a court challenge against the labeling.

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