Quelle:
Von Newstation Wired - https://twitter.com/WIRED/status/855861120854360065/photo/1?ref_src=twsrc%5Etfw&ref_url=http%3A%2F%2Fresistancereport.com%2Fnews%2Fattendance-numbers-march-science%2F, CC-BY 4.0, https://commons.wikimedia.org/w/index.php?curid=58250