The biologist carried out an experiment at the University of Hohenheim in which she attached different plants in pots to a disc that rotates horizontally.
Cities hold tons of materials that can be reused — and doing so can address over-exploitation of scarce natural resources. From buildings to electronic waste, we are surrounded by value. So how does urban mining work?
From making paper out of elephant dung to building homes with used cardboard, eco@africa has featured a range of inventive recycling ideas. Here are our top five innovations doing their bit for the environment.
An activist in Niger is creating jobs for locals by making seat cushions out of used tires. Additionally the recycled cushions are more comfortable and even last longer than traditional Sahel ones.
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