Hong Kong, an undeniably beautiful city with an undeniably disgusting problem.
The city has a well-documented littering problem with much of the trash ending up on its coastline and even a law threatening a $1,500 fine for anyone caught leaving their litter on the ground.
(Video via YouTube / Dante Archangeli ) Enter a new campaign from Hong Kong Cleanup to publicly shame litterbugs.
They collected discarded cigarettes, coffee cups left on public plant displays and ... yes, that's a condom.
The link between all these pieces of trash?
DNA the litterers left behind.
(Video via Hong Kong Cleanup ) "We predict eye color, skin color, hair color, freckling, the shape of the face and biogeographic ancestry," said Dr. Ellen McRae Greytak of Parabon Nanolabs, the laboratory that Hong Kong Cleanup and ad firm Ogilvy and Mather hired to test the litter samples.
On Earth Day, Hong Kong Cleanup posted the images of the litterers' faces on digital billboards in the same location where the environmentalists found the trash.
This isn't exactly unprecedented.
Police have used DNA from discarded trash for years to solve crimes under a legal precedent called "abandoned DNA."
In the month that followed, the shaming ad-campaign's received extensive media coverage and headline after headline — something Hong Kong Cleanup continues to revel in .
The attention is certainly well-timed.
Hong Kong Cleanup estimates the city produces 6 million metric tons of trash a year and has its annual cleanup challenge the second week in June.
To date, the group says it's picked up more than 17 million pieces of trash.
This video includes an image from Getty Images.