&nbsp;<blockquote class="twitter-tweet"><p lang="en" dir="ltr">Students at this South Korean university can pay for their coffee by using the eco-friendly ‘BeeVi toilet’, which helps power a school building by turning faeces into methane gas. <a href="https://t.co/2ZdJz3ju4Y">pic.twitter.com/2ZdJz3ju4Y</a></p>&mdash; South China Morning Post (@SCMPNews) <a href="https://twitter.com/SCMPNews/status/1414917526186643464?ref_src=twsrc%5Etfw">July 13, 2021</a></blockquote> <script async src="https://platform.twitter.com/widgets.js" charset="utf-8"></script>