Millions of tons of plastic are trashed every year. But what if we used it to pave our roads?
A road running through Accra, Ghana’s capital, looks like any other blacktop. Yet what most drivers don’t realize is that the asphalt under them contains a slurry of used plastics — shredded and melted bags, bottles and snack wraps — that otherwise were destined for a landfill. The impetus for many similar road projects underway in Ghana was an ambitious plan announced [...]
