As evidence mounts regarding the environmental and health problems associated with widespread use of the pesticide glyphosate—otherwise known as Monsanto’s Roundup—consumer advocacy groups are mobilizing to work for government action. While glyphosate has already been banned or widely restricted in other countries, its use has not been dramatically scaled back in the United States. Now, activists are calling on the Environmental Protection Agency to revoke the license for glyphosate in an effort to prevent future problems.

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GMO awareness group Moms Across America recently published the results of a test that discovered glyphosate in a variety of California wines, including those grown organically and biodynamically (without the direct use of pesticides). Previous testing by other organizations has revealed glyphosate lingers in wheat bread, cotton paper products, and even in the breast milk of nursing mothers. Since the World Health Organization announced glyphosate is a “probable carcinogen” in early 2015, governments around the world have taken swift action to limit its use.

Related: Test finds glyphosate in California wines—even those grown organically

In America, however, not much has changed. Although some local agencies have reclassified glyphosate’s use, translating into slightly reduced applications and additional signage to alert the public, no federal action has occurred. The Food and Drug Administration only recently announced its intention to begin testing food products for glyphosate, and there is still very little information about how that will be done or what decisions the agency will make based on the results.

The EPA has the authority to ban glyphosate nationwide, by revoking its license and deeming it a harmful substance. Moms Across America launched a new petition to send a message to EPA leaders in Washington D.C. in hopes of convincing them to do just that.

+ Tell the EPA to revoke the license for glyphosate

Images via Shutterstock and Jets and Zeppelins/Flickr