In June 2020, in the wake of the murder of George Floyd, Prescod-Weinstein, Brian Nord, and the Particles for Justice group organized a global "Strike for Black Lives". Prescod-Weinstein authored a note on the Particles for Justice page titled "What I wanted when I called for a Strike for Black Lives". On June 10, the day of the strike, over 4,500 academics pledged participation in the strike. Additionally, numerous organizations, including Nature, the American Physical Society, the American Association for the Advancement of Science, and the American Institute of Physics supported and/or participated in the strike.