Protesters call for economic and political changes to curb the effects of global warming in New York City. (Photo by Andrew Burton/Getty Images)

Scientists now have their own day to demonstrate.

Started with the kind of grassroots idea, enthusiasm, and energy that eventually brought hundreds of thousands of people to the Women’s March on Washington, the Scientists’ March on Washington will take place on April 22, organizers announced yesterday. Also like the Women’s March, sister rallies will take place across the globe.

“It is time for scientists, science enthusiasts, and concerned citizens to come together to make ourselves heard!” reads a Facebook page for the march, which has more than 300,00 supporters. The event is “a celebration of our passion for science and a call to support and safeguard the scientific community,” the official webpage says.

“Yes, this is a protest but it’s not a political protest,” organizer and postdoctoral fellow Jonathan Berman told The New York Times. “The people making decisions are in Washington, and they are the people we are trying to reach with the message: You should listen to evidence.”

Still, the idea isn’t without controversy in the scientific community.

“Trying to recreate the pointedly political Women’s March will only serve to reinforce the narrative from skeptical conservatives that scientists are an interest group and politicize their data, research and findings for their own ends,” writes coastal geologist Robert S. Young in a recent op-ed. “There is no question the proposed March for Science will make my job more difficult and increase polarization.”

Meanwhile, a Tax March is planned for the weekend before, on April 15, and there are marches planned for two consecutive weeks after the scientists descend.

The following weekend, on Trump’s 99th day in office, environmentalists are planning a massive climate change march, with a similar big-tent philosophy as the Women’s March. “We look at climate with a racial and economic justice lens,” says Paul Getsos, the national coordinator for the People’s Climate Movement. The coalition of more than two dozen disparate groups grew out of a 2014 march that brought 400,000 people to the streets of Manhattan.

And two weeks later, on May 6, local organizer Erick Sanchez (he was also behind the Thank You Unce Joe rally and Stand With Comet) is putting together an Immigrants’ March.