They are not amenable to persuasion; the louder the sirens wail, the more material they rush to the fire, and so it is evident that change will have to be forced upon them. The movement must learn to disrupt business-as-usual. To this end, it has developed an impressive repertoire: blockades, occupations, sit-ins, divestment, school strikes, the shutdown of city centres, the signal tactic of the climate camp.
