PET is one of the most commonly used plastics. It’s usually transparent ... That’s partly because they consist of several polymer types that don’t all melt at the same temperatures.

IVL Swedish Environmental Research Institute says mechanical recycling of plastic offers climate benefits.

(AP Photo/Felix Marquez) Jesus Cuevas, a Petgas technician, carries a bag filled with shredded plastic, at a recycling center ...

When the Great Lakes Water Quality Agreement was passed in the 1970s, eutrophication was the big problem. Eutrophication occurs when too many nutrients enter a body of water, increasing the amount of ...

Those different uses require different types of plastics, with different dyes, forms and compositions. Past threats to the Great Lakes were single contaminants like mercury or PCBs from single ...