From Henry Brighouse our sustainable blog writer –
In the film ‘The Martian’, an astronaut (Matt Damon), stranded on Mars has to stay alive until another space mission from Earth can rescue him. His only option is to create soil, a biological medium in which he can grow food. All he has at his disposal are a few potatoes going to seed, a climate controlled tent, the discarded toilet bags of his departed comrades (definitely
biological), Martian dust and water. The story, naturally, has a happy ending.…