This summer is bringing Perth's climate unrest to the boil as protest groups join forces to leverage crowds attracted by one of the world’s biggest fringe festivals as they launch high-visibility actions.

They disrupted the Fringe World launch on Thursday, held a bushfire vigil and protest march on Friday, followed up with a protest on Saturday and launched a month-long show called 1.5 Degrees live in which a rotating cast of artists will perform live readings of a seminal climate change scientific paper at the main festival hub.

Climate protesters disrupt the launch of the annual Fringe World festival at the Ice Cream Factory in Perth. Credit:Miles Tweedie Photography

After a string of UK galleries, festivals and theatres cut ties with fossil fuel companies, members of Woodside With the Climate recently mounted a letters campaign to Fringe chief executive Sharon Burgess, asking her not to renew Woodside’s principal sponsor role when it ends in 2021.

And on Thursday night at Perth’s Ice Cream Factory, a trio of member artists on Thursday briefly stormed the stage calling for Ms Burgess to respond.