This issue of Time Magazine features global “Heroes of the Environment”, including Singaporean Jack Sim, founder of the World Toilet Organization (WTO) and tireless advocate for proper sanitation around the world. The article about Sim’s contributions highlights his all-rounded approach to the issue of a lack of access to safe and clean toilets in many rural areas. He partners with organisations from over 50 countries to broaden reach and impact, and to educate and change mindsets so that toilets are seen as a desirable thing in rural communities. Additionally, he works on circularity for sustainability, such as by partnering toilet makers with fertilizer businesses and developing technology to convert sewage into biogas for cooking.Sim is an entrepreneur who has dedicated his life to improving global sanitation conditions. After building a successful business empire in his younger years, he pivoted to social causes in his forties, founding multiple influential organisations including the Restroom Association of Singapore in 1998, the World Toilet Organization (WTO) in 2001, and the Bottom of the Pyramid (BoP) Hub in 2011.