Extinction Rebellion (abbreviated as XR) is a socio-political movement with the stated aim of using civil disobedience and nonviolent resistance to compel government action on climate breakdown, biodiversity loss, and the risk of social and ecological collapse. Extinction Rebellion was established in the United Kingdom in May 2018 with about one hundred academics signing a call to action in support. — Wikipedia
The movement uses a circled hourglass, known as the extinction symbol, to serve as a warning that time is rapidly running out for many species. From rebellion.earth:
The Extinction Symbol was designed in 2011 by street artist ESP, who loans XR usage on the same basis: www.extinctionsymbol.info.
Since its launch, XR has quickly gained national and international following, taking it to the streets in mass demonstrations, demanding immediate action from their national parliaments and governments.
For their branding, the organization uses a custom, rounded version of Futura Condensed named Fucxed. Initially used in lowercase for the XR logo, a caps-only version is used across the globe on banners, websites and social media. In comparison to other recent peoples movements such as the (anti-)Brexit protests, or the Women’s Marches, there is a remarkably uniform and consistent branding in the messages from Extinction Rebellion in outlets from social media to worldwide demonstrations.