Researchers have discovered a new form of plastic pollution known as "plasticorals," which are fragments of coral rubble that have fused with plastic. This finding emerged from routine beach litter surveys conducted on Okinawa, a subtropical island in Japan. Scientists noticed small, brightly colored specks mixed in with the pale coral rubble. Using spectroscopic and microscopic analyses, they confirmed that these specks are melted polymers from common household plastics that have become permanently embedded in the pores of the dead coral. The term "plasticorals" was introduced in a recent study published in Marine Pollution Bulletin by Dr. Ifenna Ilechukwu and Professor James D. Reimer. These plasticorals are a type of "plastiglomerate," a hybrid form of debris that combines plastic with natural materials, and they highlight the enduring impact of plastic pollution on coral reef ecosystems, which are already under threat from climate change and other human activities. Coral rubble found on beaches can be washed back into the ocean, where it plays a crucial role in reef ecosystems. It serves as a stable surface for new corals to grow and provides shelter for juvenile fish and other small marine life. However, the presence of plastic in this rubble—now termed plasticorals—could disrupt these natural processes. While more research is needed to determine the exact origins of plasticorals, which may include sources like beach bonfires, early studies suggest that chemicals leaching from plastics can interfere with coral growth. Additionally, plastic debris has been found to host harmful coral pathogens, which can spread through the marine food chain. Plastic is the third-most widely produced material in the world, following cement and steel. Unlike these materials, which break down over thousands of years, plastic persists in the environment for much longer. Scientists predict that future geologists may identify a distinct layer of plastic in the Earth's crust, marking the period from the 1950s onward. This era, sometimes referred to as the "Plasticene," could serve as a geological marker of human influence on the planet. The discovery of plasticorals adds to growing concerns about how plastic pollution is altering marine ecosystems and may leave a lasting imprint on Earth's natural history.