Participants in the March for Science walk along Constitution Avenue in Washington, D.C., on Saturday. Meredith Rizzo/NPR hide caption
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march for science
Yolanda Gonzalez, a sixth-grade teacher of Pomona, Calif., demonstrates as part of the March for Science in downtown Los Angeles on Saturday. Amanda Lee Myers/AP hide caption
Scientists rallied for evidence-based public policy outside the American Geophysical Union's fall meeting in San Francisco in December. Marcio Jose Sanchez/AP hide caption
Should Scientists March? U.S. Researchers Still Debating Pros And Cons
