More than 2,500 retired New York subway cars were dropped into the Atlantic between 2001 and 2010, not as illegal dumping but as a planned reef programme, and marine biologists who kept watch found the sunken trains quickly turned into some of the rich - Space Daily

A massive environmental initiative turned discarded New York subway cars into thriving underwater habitats, with marine biologists documenting how the sunken trains rapidly became bustling artificial reefs. Unlike illegal dumping, the project was deliberately designed to restore marine life, proving that even urban waste could serve an ecological purpose. Researchers observed the structures attracting diverse species within just a decade, transforming what was once scrap metal into a productive marine ecosystem. The findings highlight an unexpected success story in repurposing infrastructure for conservation.

More than 2,500 retired New York subway cars were dropped into the Atlantic between 2001 and 2010, not as illegal dumping but as a planned reef programme, and marine biologists who kept watch found the sunken trains quickly turned into some of the rich  Space Daily