Recently, a new kind of rock has been discovered on Trindade Island, a volcanic island located 1,140 km from the southeastern state of Espirito Santo. These rocks are composed of a mixture of sedimentary granules and other debris held together by plastic that has melted and become intertwined with the rocks. Scientists have given them the name “plastiglomerates”.
The Discovery and its Significance
The discovery of plastiglomerates on Trindade Island has alarmed researchers as it shows the extent and new form of plastic pollution in the world’s oceans. Plastic waste that makes its way into the ocean can travel great distances and can stay there for thousands of years, as it is not biodegradable. The discovery of plastiglomerates on the island is evidence of humans’ growing influence over the Earth’s geological cycles.
Sources of Marine Plastic Pollution
Plastic fishing nets are identified as the main source of plastic pollution on Trindade Island’s beaches. The nets are carried by marine currents and accumulate on the beach. When the temperature is high, the debris of plastic entangled in rocks melts and becomes one with the rocks on the beach. It cools down and forms as rock with natural rock.
Diversity of Trindade Island
The volcanic island of Trindade is a unique place with diverse flora and fauna. It is one of the world’s most important conservation spots for green turtles, or Chelonia mydas. Thousands of these turtles arrive at the beach to lay eggs in what is called Aribadda. The island has no human population, and the only human inhabitants on Trindade are members of the Brazilian navy. These members maintain a base on the island and protect the nesting turtles.
The Alarming Discovery
The area where the plastic rocks were found is near the conservation site where green turtles lay their eggs. This discovery is very alarming as the presence of plastic waste near the nesting site can pose a great threat to the survival of green turtles.
Why In News
Researchers from Brazil have discovered rocks made of plastic on isolated islands.The finding is a disturbing evidence of plastic pollution’s impact on the environment, and highlights the urgent need for global action to address this growing problem.
MCQs on Sources of Marine Plastic Pollution
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What are plastiglomerates?
A. Rocks made of volcanic ash and plastic debris
B. Rocks made of sedimentary granules and other debris held together by plastic
C. Rocks made of plastic only
D. Rocks made of plastic and metal debris
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What is the main source of plastic pollution that forms plastiglomerates on Trindade Island?
A. Plastic bottles and straws
B. Plastic fishing nets
C. Plastic bags and wrappers
D. Plastic toys and utensils
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What is the significance of Trindade Island in terms of conservation?
A. It is one of the world’s most important conservation spots for green turtles
B. It is the only island with a human population in Brazil
C. It is home to diverse flora and fauna
D. It is a popular tourist destination in Brazil
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