New Study Raises Concerns about the Effectiveness of Sunscreen Products LAS CRUCES, NM (krwg) - With the 4th of July holiday weekend usually comes barbeques, family get-togethers and lots of time spent outdoors. But as KRWG's Evan Woodward reports, a new study released by the Environmental Working Group may have you thinking twice about the brand of sunscreen you choose to purchase. www.ewg.org © Copyright 2012, krwg