More than 2 billion tonnes of municipal waste are generated worldwide every year, and, according to a World Bank report, this amount is projected to increase by another 70% by 2050. This means that ...

Once packaging leaves the consumer, it enters fragmented collection and sorting systems where contamination, infrastructure gaps, and market forces determine its fate.

China started small-scale trials of waste sorting in 2000, but landfill sites and unmanaged waste continued to encircle cities and local people protested plans to build more incinerators. Gradually, ...