Workers waged hundreds of work stoppages in 2021, marking millions of total “strike days” over the course of the year that saw a resurgence of the U.S. labor movement but a decline in overall union membership. According to a new report by researchers at the School of Industrial and Labor Relations at Cornell University, 140,000 workers went on strike or otherwise participated in a work stoppage last year in 265 strikes and lockouts. Together, the workers logged over 3.2 million strike days. Pay was the most common reason for workers to go on strike, the data shows. Nearly 60,000 workers…