On March 15, 2019, 1.4 million supporters in 128 countries skipped school or work for what was then the largest youth-led day of climate protests in history. The school strikes for climate movement, launched by 15-year-old Greta Thunberg of Sweden in 2018, brought public participation to levels never seen before and continues to have ripples despite the challenges of the early 2020s. For example, the school strike movement brought new, youth-led energy into the campaign to remove four dams on Idaho's lower Snake River that were reducing salmon runs. Through Youth Salmon Protects, high school environmental clubs helped build a region-wide movement in favor of removing the dams. Since the climate strikes and groups like Sunrise popularized the 'Green New Deal,' municipalities across the US have used it to frame new, far-reaching climate plans that will reduce emissions at the local level.