In Poland, Veolia provides local, decarbonised energy from wastewater.
Start-up Néolithe transforms waste, including household waste, into aggregates for use in the construction industry.
Mercado de Trueque, a "barter market" where recyclable waste is exchanged for local farm produce.
Amsterdam takes its inspiration from the "doughnut" economic model which aims to combine both environmental and social justice.
US researchers use agricultural waste as an additive to reduce the environmental impact of road salt.