Olafur Eliasson uses technical devices and natural elements such as light, water, and fog to transform exhibition spaces into immersive, site-specific environments. Major themes include human perception and our relationship to the natural world. For his major 2003 commission The Weather Project, Eliasson installed a giant artificial sun inside Tate Modern. For Ice Watch (2014), he left giant blocks of glacial ice to melt in London, Paris, and Copenhagen. Both spectacular projects aimed to raise awareness about climate change. In other works, Eliasson has embraced optical illusions. He has been the subject of exhibitions at Fondation Louis Vuitton, Moderna Museet, Tate Modern, and the Museum of Contemporary Art Tokyo, among other institutions. In 2003, Eliasson represented Denmark at the Venice Biennale.