L.A. March for Science updates: Marchers ignore Trump supporters on their way to City Hall

More than 500 cities around the world, including 40 in California, will host a March for Science on Saturday. In Los Angeles, thousands are expected to descend on downtown. High-profile speakers include seismologist Lucy Jones and billionaire climate change activist Tom Steyer.

But what does a March for Science even mean? And what do the attendees hope it will accomplish? To answer these questions and more, our reporters Deborah Netburn and Javier Panzar and photographer Genaro Molina will brave the heat and the science-believing masses to bring you real-time coverage.