
Federal researchers found study also found that only about 5% of discarded plastic in the U.S. was recycled in 2019, while 86% was left in landfills and 9% was burned to generate electricity. | Huguette Roe/Shutterstock
A study from the U.S. Department of Energy estimated the amount of plastic discarded in the U.S. in 2019 was 44 million metric tons, higher than other estimates.