Greenland seabed reveals historical plastic pollution data

Researchers at the University of Copenhagen have collected seabed samples from Disko Bay in Greenland. They found the first historical record of plastic pollution in this region. The study reveals a strong link between plastic accumulation and local economic development since the 1950s. The team used seabed coring techniques to gather these samples. This method is similar to drilling for ice cores. By analyzing the samples, they noticed plastic levels increased significantly during periods of economic growth in Greenland. The findings suggest that local sources of plastic pollution are important, not just ocean currents. The researchers hope this data will improve our understanding of global plastic pollution. The study's lead, Karla Parga Martinez, emphasized that their findings can help identify sources of plastic more accurately. Co-author Nicole Posth stated that this research provides critical data to track plastic pollution trends. The study also developed new techniques for identifying plastic types in ocean sediments. The researchers used a method to date the sediment samples. This helps build a clearer historical record of plastic contamination over time. Plastic pollution symbolizes the impact of human activity on the environment. This research supports the idea of the Anthropocene, a term describing the recent period when human actions alter Earth's climate and ecosystems. Understanding the historical context of plastic in the ocean is crucial. It allows for an evaluation of humanity's impact on nature. The study from Greenland is an important step in this ongoing research.