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.
In a megacity like Lagos, car tires often end up as waste on the city's streets. Olamide Ayeni, founder of local initiatve Pearle Recyclers, is trying to salvage beauty from the rubbish heap.
With the summer heat leading to increased beer consumption, some breweries in Germany complain about lacking enough bottles and crates. Beer packaging, it seems, is a recurrent, long-term problem for the industry.
Fashion firms are tapping into growing public outrage at plastic pollution by offering snazzy garments made from old water bottles and other waste. But will it catch on — and can it make a difference?
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