Greta Thunberg: don't dump climate crisis on children to fix

World political leaders must step up on the environment, activist tells Venice film festival showing of documentary about her

The Swedish activist Greta Thunberg has called for more action to be taken to address the climate crisis, which she says has slipped dangerously off the political agenda.

Thunberg appeared by video link at the Venice film festival where the film, I Am Greta, has been screened. It documents her life as one of the most famous teenagers in the world after she became the figurehead for a global climate crisis campaign.