Ackroyd and Harvey have exhibited most recently at Milan’s Hangar Bicocca, Macro Testaccio, Rome, M.A.D.R.E Naples and Royal Academy of Arts “Earth: Art of a changing world” exhibition in London. Sculpture, photography, architecture and ecology are some of the disciplines that intersect in their work, revealing an intrinsic bias towards process and event, and often reflecting environmental and scientific concerns. Their artworks make explicit connections with urban political ecologies by highlighting the temporal nature of processes of growth and decay in sites of architectural interest as well as contemporary art galleries and museums worldwide. Renowned for large-scale interventions in 2007 they grew London’s National Theatre’s iconic Lyttelton fly-tower with seedling grass and have received numerous awards for their work making complex photographic images utilizing the light sensitivity of chlorophyll. They have made expeditions to the High Arctic with Cape Farewell studying the effects of climate change on the eco-system and exhibited their work at London’s Natural History Museum, Liverpool Biennial and Japan’s Miraikan Museum. Currently they are growing 250 saplings from acorns collected from Joseph Beuys’s seminal artwork “7000 Oaks”. In 2009, Ackroyd and Harvey presented at the Nobel Laureate Cultural Symposium ‘Sculpting Our History’ and have given many lectures in the UK and abroad.