I found the following UK published book (found in the Barcelona modern art museum) a real insight to the growing numbers of art & ecology projects that are happening around the world. There are too few books that investigate this area in any depth, so a real find! Highly recommended.
Land, Art: a Cultural Ecology Handbook presents a compendium of texts, dialogues and collaborations by and among ecologists, economists, cultural theorists, activists and art writers that extend from the notions of land, cultural production and the emergencies of 21st century. Reproductions of existing artworks by and original contributions from international practitioners – as well as artists on-the-page ‘studio visits’, for example – will explore art’s varied modes of response – from detached crisis commentaries to engaged activist solutions.