Out of the lab and into the streets: recent policy changes have caused heightened worry among scientists, say organizers of the March for Science, April 22 on Windsor’s waterfront and in more than 400 cities around the world.

Physics professor emeritus Bill Baylis and biology professors Dennis Higgs, Kirsten Poling, Lisa Porter and Tanya Noel are among the speakers scheduled to address the event, which begins at 10 a.m. Saturday in Assumption Park near the foot of Askin Avenue.

On the agenda are science-based activities for children and vendors offering refreshments. Find a full rundown on the event Facebook page.