Across the world, people will gather for a youth-led climate strike on Friday, Sept. 20, in what climate activists hope to be their biggest mobilization yet. West Marin is sending its own coalition of young activists to San Francisco to join in: Claire Hutkins Seda, a board member of the Environmental Action Committee, has organized local youth and allies who will bus to the city. The group, called West Marin Loves Earth, held an art party last week at Ink Paper Plate, where they printed fabric flags, banners and T-shirts using a design created by Ms. Seda’s 10-year-old daughter. Letterpress posters feature linocut by Camila Killion, the 18-year-old daughter of woodblock artist Tom Killion. Ms. Seda chose the group’s theme because the language around the climate crisis can be terrifying, so she wanted to give it an uplifting spin of love for the earth. “We are celebrating that West Marin is environmentally aware, and that we want to do our part to stop the climate crisis,” she said. She has filled one bus already, and plans to rent another for the over 50 people who have expressed interest. She emphasized that although many students are attending, most from fourth to eighth grade, all are welcome. Since last September, some student activists have been skipping school on Fridays to protest the lack of action on the climate crisis, inspired by 15-year-old Greta Thurnberg, who sat in front of the Swedish parliament every school day for three weeks. Ms. Thurnberg continued striking every Friday, demanding that her government does its part to keep global warming under 2 degrees Celsius. “You say you love your children above all else, and yet you are stealing their future in front of their very eyes,” she said in a speech at a United Nations conference. The movement she sparked, called “Fridays for Future,” have involved hundreds of thousands of people in over 100 countries. The Sept. 20 mobilization comes three days before a United Nations climate action summit in New York (Ms. Thurnberg sailed across the Atlantic in a zero-emission boat to attend). The San Francisco strike begins in the morning at Representative Nancy Pelosi’s office in the federal building, and winds through the city with stops at Bank of America, Senator Dianne Feinstein’s office, Immigration and Customs Enforcement and finally the Embarcadero. “Our house is on fire—let’s act like it,” the organizing website states. Strikers have seven demands: a safe, healthy and just planet; justice and asylum for people displaced by climate change; policy based on science; that people, not corporations, influence politics; equal rights for all; that humans protect the rights of nature; and a just transition in which those who have contributed the most to climate change are held accountable. People interested in participating in the climate strike can email Claire Seda at email@example.com.