We all use paper. Lots of paper. But we also love trees, and do we ever think about how many trees it takes to make our paper? And building paper pulp mills in Australia is very controversal.

We talk to Dr Tom Rainey from the Centre for Tropical Crops and Biocommodities, QUT who's been looking at how we make paper, and sugar can bagasse as an alternative source for pulp.

Interview by Kiri, Michael and Rod.