A Greenpeace report ‘Dirty Laundry” (http://www.greenpeace.org/international/en/publications/reports/Dirty-Laundry/) describes results from water samples from the Yangtze and the Pearl river deltas. Their analysis suggests significant levels of chemical contamination that are potentially hazardous and can impact fish populations too.  The report urges brand manufacturers who source clothing from suppliers in the region to commit to a “zero discharge” of chemicals across their supply chain.  A recent report in Sustainable Brands Weekly describes Puma’s plan to zero discharge of all hazardous chemicals across their supply chain by 2020. Is the brand manufacturer responsible for monitoring all actions of suppliers along their global supply chain regardless of tier ?  Should the supplier’s responsibility remain complying with local regulations or regulations set by the brand, given their need to generate competitive bids ? How should certification of “zero discharge” be monitored for global corporations – should this be done by private auditors or by a UN like entity ?