Yuyun Ismawati is a co-founder and Senior Advisor of Nexus3, formerly known as BaliFokus Foundation, an environmental NGO working towards a just, toxics-free, and sustainable future. She has broad and rich experiences in urban environmental management issues, environmental health, toxic, and wastes issues. The participatory approach, stakeholders engagement, and systemic changes are the main approaches and tools of her intervention in environmental and health issues. She is a part-time social entrepreneur interested in finding a systemic change to answer environmental problems, mainly through Public-Private-People Partnerships. At the global level, she is affiliated with IPEN (International Pollutants Elimination Network), serves as the lead for Artisanal Mining/Mining and affiliated with the Toxics-Free Future Network: GAIA, WECF, BAN, HCWH, and #BreakFreeFromPlastic movement. She holds an Environmental Engineering Bachelor degree from ITB Indonesia (1990), MSc in Environmental Change and Management from the University of Oxford (2011). She is a Goldman Environmental Prize 2009 awardee, LEAD (Leadership for Environment and Development) Fellow, and an Ashoka Fellow.