A year after China stopped accepting most scrap material exports, other Asian countries are following Beijing's lead, forcing wealthy nations to find domestic solutions for managing their wastes.
Biodegradable bags still strong enough to carry shopping after three years in the ground show that 'biodegradability' isn't all it's cracked up to be.
Truly green plastic requires more than sustainable raw materials.
Magnets, air blowers, centrifuges, crushers: your recyclables go through a lot before they get turned into something else.
Tonnes of plastic end up in the ocean each year, but a switch away from petroleum-based products to bio-derived and degradable composites could lessen marine pollution.