Why human urine may be our most untapped natural resource

Why human urine may be our most untapped natural resource

While largely viewed as a toxic waste product with no practical use, our urine is actually rich in all manner of valuable nutrients that, with a little effort, can be extracted, recycled and converted into fertiliser for use on food crops, used to make building materials or even used to generate electricity. In this episode, we’re joined by Kai Udert, a researcher based at the Swiss Federal Institute for Aquatic Science and Technology, to talk about the many ways we could be putting our pee to better use. He tells us how our current systems of dealing with wastewater came into being, what happens to our urine once we flush it down the toilet, and talks us through some ways in which we may be able to make more use of this common, overlooked resource. Learn more about your ad choices. Visit podcastchoices.com/adchoices

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Episoder(684)

How to make buildings without harming the Earth

How to make buildings without harming the Earth

Every built environment we spend our time in, our homes, offices, music venues or sports stadiums – is designed and constructed after hours of consideration about form and function. Oftentimes, less c...

8 Okt 32min

Why humans are wired to appreciate beauty

Why humans are wired to appreciate beauty

A late summer sunset, a peaceful, verdant forest, or a Shakespearean sonnet – these are all things that move us emotionally thanks to what we perceive as their beauty. But why is this so, why do envir...

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How safety engineers test everyday products to destruction

How safety engineers test everyday products to destruction

Whenever we buy a new product or use a service, we simply expect it to work as advertised, usually without giving much thought to how it came to being in the first place. However, behind the scenes, e...

1 Okt 40min

Why we need to be taking asthma more seriously

Why we need to be taking asthma more seriously

Currently, around one in ten of us are living with asthma. For many, the symptoms can be relatively mild, but for others, attacks can be severe, debilitating, and even life-threatening. For the most p...

27 Sep 25min

What our evolutionary history can teach us about eating well

What our evolutionary history can teach us about eating well

These days, supermarket shelves are filled with thousands of different products all vying for our attention; the options are almost endless. However, if we look back in time, we find that our early an...

24 Sep 34min

Why Smell is Our Most Overlooked Sense

Why Smell is Our Most Overlooked Sense

Though often thought of as the poor cousin to our other senses, our sense of smell has played a key role in human life since its very beginnings. It helps us to determine whether certain foods are saf...

20 Sep 26min

Are We Living in a Simulation? How to Tell If Reality Is Fake

Are We Living in a Simulation? How to Tell If Reality Is Fake

The possibility that we may be living in a simulation created by a more technologically advanced civilisation has occupied the minds of scientists, philosophers and fiction writers for decades. We may...

17 Sep 36min

Why we need to rethink our ideas about laziness

Why we need to rethink our ideas about laziness

Often in life, we find ourselves being accused of being lazy or accusing others of acting lazily, or maybe even becoming frustrated by what we see as laziness in our own actions. But what do we really...

13 Sep 29min

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