In the United States we seldom think about the importance of toilets. Good hygiene and working sewage is just something that the average citizen assumes will always be there, and always work. However, this is not true for the rest of the world where hygiene is a critical health and wellness issue.
More than half of the world’s population – roughly 4.5 billion people – live without access to toilets and the safe sanitation they provide. Estimates are that globally, unsafe sanitation costs the world’s population $223 billion (yes, billion) a year in higher health care costs, lost productivity, and lost wages. It is an issue that The Bill and Melinda Gates Foundation is taking very seriously, pledging $200 million over the past seven years to help reinvent toilets, and pledging another $200 million more to get companies to understand the problem – and business – of human waste.
At the Reinvented Toilet Expo, held last fall in Beijing, companies showcased new toilets that could recycle water, separate urine from other waste, and even with solar roofs. Mr. Gates told the audience that human waste contains 200 trillion rotavirus particles, 100,000 parasitic worm eggs, and other harmful organisms.
This might not be an easy subject to discuss, and a lot of bad jokes will undoubtable be told in class, but it is an issue that affects the world, and one that product innovation can help to solve.
Group Activities and Discussion Questions:
- Discuss the business of waste, sanitation, and fixtures.
- What happens when sanitation is poor? What are the impacts?
- Show Bill Gates video: https://youtu.be/M9nRsJinHhM
- View Gates Foundation site: https://www.gatesfoundation.org/
- View Toilets for People for an example of a business: https://www.toiletsforpeople.com/
- Have students research other companies with a similar mission and objective.
- What social issues matter to the students?
Source: Wee, Sui-Lee (6 Nov. 2018). In China, Bill Gates encourages the world to build a better toilet. New York Times.