Published at 11:19 AM EDT on Apr 22, 2017 | Updated at 3:18 AM EDT on Apr 23, 2017
In cities across the globe, scientists and advocates took to the streets Saturday to call for support and funding for scientific research and education. The March for Science, coinciding with Earth Day, took place in hundreds of cities over the world. Some demonstrators carried clever signs calling for science funding and, among other things, an end to climate change denial. See some of the scenes and signs from the first worldwide March for Science.