‘I’m a prisoner of hope’: Olafur Eliasson on using art to bring us together to save the world

Inside Presence, the Icelandic-Danish artist’s epic new show in Brisbane, what you see changes based on where you stand or how you look – crucial when it comes to tackling the climate crisisI gasp as it comes into view: an enormous sun looming above, its surface roiling with what looks like thousands of tiny atomic explosions. It seems to notice me as well: when I stop, it stops too. It’s both awe-inspiring and unnerving.In the mirrors around the glowing orb, I spot Icelandic-D