Protests have taken place around the world calling for action to avert environmental catastrophe.
From London to Sydney, here's a look at some of the millions of people joining the global youth climate strike.















People shared some of their favorite signs on Twitter as well:














@SarahHuckabee/X


@paige_loverde/Instagram
@iimarlieii/Instagram
@brainfreestv/Instagram
@meatloafmaggie/Instagram
@gretchen.m.goodell/Instagram
@patomaru/Instagram
@brianneleigh96/Instagram
@teo_ctinescu/Instagram
@calebscuriocabinet/Instagram
@rascallygoose49/Instagram
@melmarpur/Instagram
@myda.rkparadise/Instagram