When is water safe to drink? - Mia Nacamulli
View full lesson: https://ed.ted.com/lessons/when-is-water-safe-to-drink-mia-nacamulli Water is refreshing, hydrating, and invaluable to your survival. But clean water remains a precious and...
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Take a look at the water in this glass. Refreshing, hydrating, and invaluable to your survival. Before you take a sip, though, how do you know that the water inside is free from disease-causing organisms and pollutants? One out of ten people in the world can't actually be sure that their water is clean and safe to drink. Why is that? Inadequate sanitation, poor protection of drinking water sources, and improper hygiene often lead to sewage and feces-contaminated water. That's the ideal breeding ground for dangerous bacteria, viruses, and parasites. And the effects of these pathogens are staggering. Diarrheal disease from unsafe water is one of the leading causes of death around the world for children under five. And according to a U.N. re...
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Take a look at the water in this glass. Refreshing, hydrating, and invaluable to your survival. Before you take a sip, though, how do you know that the water inside is free from disease-causing organisms and pollutants? One out of ten people in the world can't actually be sure that their water is clean and safe to drink. Why is that? Inadequate sanitation, poor protection of drinking water sources, and improper hygiene often lead to sewage and feces-contaminated water. That's the ideal breeding ground for dangerous bacteria, viruses, and parasites. And the effects of these pathogens are staggering. Diarrheal disease from unsafe water is one of the leading causes of death around the world for children under five. And according to a U.N. re...
