Knowing your symbols makes it easier to reuse and recycle. Groups 1, 2, and 5 are easy to recycle curbside, but groups 4, 6, ...

Plastics are synthetic or semi-synthetic materials made from polymers, which are long chains of molecules typically derived from petroleum, natural gas, or other organic sources. Plastics are ...

Recycling of plastics from cars faces technical and economic hurdles. A new industry coalition aims to tackle it, but admits ...