Our de facto senior humanure correspondent, Sami Grover, has written a number of times on how we've both created a huge mess by mixing our excrement with water in sewage systems and Ihow we're flushing down the toilet an amazingly useful and valuable resource. This video takes off from that, showing how if we capture our urine--like has been done in China (both recently and historically)--and use it as fertilizer instead of petro-chemicals we could be saving huge amounts of carbon emissions.In fact, the video purports (I say 'purports' because it's not specified how the following figure is derived, though I have no immediate reason to doubt it) that we'd essentially offset half of all the world's airline carbon emissions, if urine collection for fertilizer was done widely.
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More on Human Waste:
DIY Composting Toilets and Humanure: The Pee and Poop Show (Video)
Is Recycling Our Poop Key to Sustainable Farming?
Peepoo Bags Promise to Clean Up a Lot of Global Crap