Cartography and Rio Doce are large scale installations constructed of tiles of cardboard. Howells began working with cardboard as a “found” material that was easily transformed and allowed for flexibility in creating and scaling works that traditional media prohibit. Cartography unites different themes of interconnection with nature and how humans order the world. Rio Doce documents the impact of a mining accident in Brazil that polluted Rio Doce with toxic mud, killing 30 residents that lived below the mine and impacting indigenous communities and nature for hundreds of kilometers.