Geologist Minik Rosing collaborated with Olafur Eliasson to create ‘Ice Watch’ (2014) – an artwork that brings large blocks of Greenlandic glacial ice, harvested from the sea, to prominent urban locations to offer the public a direct, tangible experience of the reality of melting Arctic ice. In this clip, Rosing talks about the qualities of these glacial ice blocks while visiting an installation of the artwork in London in front of Tate Modern in December 2018.