Trash sits out for collection on a Philadelphia street on Thursday. The omicron variant is sickening so many sanitation workers that waste collection in Philadelphia and other cities has been delayed or suspended.
A man wearing a protective mask looks at piled-up trash in New York City on April 24. Cities are struggling with collection as the volume of residential garbage surges during the stay-at-home era.
Cindy Ord/Getty Images
The world's second-biggest garbage dump is in Brasilia. It has been growing since the 1950s, when city planners failed to factor in proper facilities for trash disposal, and now occupies the equivalent of 250 football fields.