The Rare Element That Could Limit Life on Earth | BBC Earth Science

Phosphorus is essential to life on Earth, but in the wider universe, it’s surprisingly scarce, earning it the nickname “life’s bottleneck”. In this episode of #Elemental, discover how something as routine as flushing the toilet could be contributing to its decline here on Earth. Best of Earth Science: http://bit.ly/EarthLabOriginals Best of BBC Earth: http://bit.ly/TheBestOfBBCEarthVideos This is a channel from BBC Studios who help fund new BBC programmes. Service information and feedback: http://bbcworldwide.com/vod-feedback--contact-details.aspx