Some of the world's top footwear brands, including Clarks, Adidas, Nike and Timberland, have demanded an immediate moratorium on destruction of the Amazon rainforest from their leather suppliers in Brazil...[An investigation by Greenpeace] said leading Brazilian suppliers of leather and beef for products sold in Britain had obtained cattle from farms involved in illegal deforestation...Clearing tropical forests for agriculture is estimated to produce 17% of the world's carbon emissions…In addition to the moratorium on leather from newly deforested areas, the footwear makers have also demanded that suppliers bring in a stringent traceability system within a year, which will "credibly" guarantee the source of all leather...[also refers to Bertin, JBS, Marfrig]