Look at the crisis in the Amazon and understand the stakes: we’re battling for life itself | Mark Ruffalo

At this week's Amazon summit, the world must stand with Indigenous peoples - and demand protection for the rainforest

Some of the most fulfilling moments in my life as an actor are when I play roles that speak to the challenges facing humanity. In The Avengers, for example, in which I play the Hulk, the team tries to undo the the snap" - an apocalyptic event brought about by the villain Thanos to eradicate half of all living beings.

As a good friend of mine says: Fantasy is not an escape from our world, but an invitation to go deeper into it." The simple fact is that humanity has triggered extinction events - and the collapse of the Amazon is a disaster that will be terrible for all of us in real life.