The radical enviormental doomsday-cult 'Extinction Rebellion' orginized an topless protest where they chained themself to an park-fence in London. The police had to use metal-cutters to get the protesters off the fence and into the police-cars for arrest. The cult-members all used black maskes with the text '4*C' - refereing to the belife that [1] the climate is dargeously hot [2] due to the CO2-level in the athmosphere [3] and that the politicians can do something to prevent an 4*C raise in the global overall temperature. This specefic activeism-strategy has been taken from the Russian 'Pussy Riot'_