Up to 15 million hectares of tropical rainforest in the Brazilian Amazon could lose protection and be clear-cut because of an article in the country’s new Forest Code. The warning comes from Brazilian researchers at the University of São Paulo’s Luiz de Queiroz College of Agriculture (ESALQ-USP) and Swedish researchers at KTH Royal Institute of Technology in Stockholm and Chalmers University of Technology in Gothenburg. They recently published a paper on the subject in Nature Sustainability.