U.N. agencies have warned that waste from electronics is piling up worldwide while recycling rates remain low and are likely to fall even further.

The agencies were referring to “e-waste,” which is defined as discarded devices with a plug or battery, including cellphones, electronic toys, TVs, microwave ovens, e-cigarettes, laptop computers and solar panels. It does not include waste from electronic vehicles, which fall into a separate category.

In a report released Wednesday, the U.N.’s International Telecommunications Union and research arm UNITAR said some 62 million tons of “e-waste” was generated in 2022, enough to fill tractor-trailers that could be lined up bumper to bumper around the globe. It’s on track to reach 82 million tons by 2030.

Metals — including copper, gold and iron — made up half of the 62 million tons, worth a total of some $91 billion, the report said. Plastics accounted for 17 million tons and the remaining 14 million tons include substances like composite materials and glass.