Economics has a solution to halt rapid deforestation but can it be implemented? This year has seen some of the worst-ever fires destroy vast tracts of the Amazon rainforest as land there is cleared for farming. We hear how the field of economics may have come up with a solution to halt the Amazon’s rate of deforestation - and what’s needed to set that in motion. Manuela Saragosa speaks to Michael Greenstone, Professor of economics at the University of Chicago and to Professor Luciana Gatti, a researcher at Brazil's National Institute for Space Research which monitors greenhouse gas emissions in Amazon.