Author: Tatiana Schlossberg
Someday, if future forms of intelligent life look for evidence of human existence in the 20th and 21st centuries, they should have an easy time finding us in the geologic record. Just look for the plastic. Between 1950 and 2021, humanity produced about 11 billion metric tons of virgin plastic — that’s the weight of 110,000 U.S. aircraft carriers. Only about 2 billion tons of this is still in use. The rest — some 8.7 billion tons — is waste: 71 percent has ended up in landfills or somewhere else in the environment, including the ocean; 12 percent has been recycled; 17 percent has been incinerated. At the rate we’re going, global plastic waste will rise 60 percent by 2050.