The Anthropocene – the idea that we now live in a geological age shaped by human activity — is a controversial topic. It irritates those who reject the whole notion of adverse climate change — and it's also now causing a fight among geologists themselves. So, what's behind the scientific contention? Also, why some argue that textiles are the new "hidden" plastic plague. Guests Dr Erle Ellis – Professor of Geography and Environmental Sciences, University of Maryland Dr Francine McCarthy – Professor of Earth Studies, Brock University, Canada Dr Rebecca Van Amber – Senior Lecturer in Fashion and Textiles, RMIT University