Geologists have made a disturbing discovery on Trindade Island in Brazil, as they have found rocks composed of plastic debris. This remote island, which serves as a vital sanctuary for green turtles, is located over 700 miles away from land. The presence of plastic rocks highlights the influence of human pollution on Earth’s geological cycles.
In March, a team of geologists observed that melted plastic had merged with the rocks on the volcanic island, forming what they refer to as “plastiglomerates.” These plastiglomerates are a combination of rock fragments, sand grains, debris, and other organic materials fused together with once-molten plastic.
Fernanda Avelar Santos, a geologist at the Federal University of Parana, explained that the pollution and improper disposal of plastic in the oceans are transforming into geological materials that are being preserved in the Earth’s geological records.
The plastic rocks were discovered in an area of Trindade Island that is permanently protected for green turtles to lay their eggs. The island is exclusively inhabited by members of the Brazilian Navy, who are responsible for safeguarding the nesting turtles.
Santos mentioned that the pollution mainly originates from fishing nets, a common form of debris found on Trindade Island’s beaches. When the temperature rises, the plastic melts and becomes integrated with the natural materials on the beach.
Fishing nets and other equipment pose a significant threat to marine wildlife and the overall ecosystem of the ocean. Approximately 100 million pounds of plastic enter the ocean each year due to lost fishing gear.
The discovery of plastiglomerates raises concerns as it may indicate that the Earth is entering a new geological era known as the Anthropocene epoch. This era signifies the significant and enduring impact that humans are leaving on the planet.
Jan Zalasiewicz, a geologist at the University of Leicester in England, believes that plastics and plastiglomerates could potentially endure as future fossils. If they become buried within layers of rocks on Earth, there is a possibility that they could persist in some form for millions of years.
Addressing this issue may seem daunting, but there are actions that can be taken to make a positive change. Advocating for green policies at the local, state, and federal government levels is an effective way to support environmental initiatives. Additionally, reducing personal plastic consumption by opting for reusable items like water bottles, shampoo bars, and dissolvable dishwasher/laundry pods can contribute to the cause. Proper recycling of plastic waste is also essential.
As Patricia Corcoran, a geologist at the University of Western Ontario, emphasized, even small individual efforts can make a significant difference. To stay informed about news and tips on how to help the planet while helping oneself, subscribing to a free newsletter is recommended.
