Jed Laucharoen, a spokesman for the Philly Peoples Climate March, said the local group had organized through Facebook and emails.
"We're going to begin at Dilworth [Park] with a half-hour rally, then march west," Laucharoen said.
The local march is spearheaded mostly by Philly With Standing Rock, a group that supported protests against the Dakota Access Pipeline, according to Laucharoen, but other groups are involved as well.
The name Peoples Climate March reflects the organizers' broader mission of "climate, jobs, and justice." A discussion panel featuring Grandmother Regina Brave and Charles Whalen, Lakota activists, is scheduled for 4 p.m. at the First Unitarian Church at 22nd and Chestnut Streets, about a half-mile from where people will gather for the draft.
The main climate march in Washington is predicted to draw 100,000. Like the March for Science last weekend, the climate march has spawned scores of smaller siblings around the world, and some cities are sending busloads of marchers to Washington.