Scientists at Yale University and University College London discovered that plants transported from the ocean to land 400 million years ago caused two different changes on Earth. The first of these changes is the decrease in the carbon level in the atmosphere and thus the significant seasonal changes, and the second change is the formation of marine organisms living in the ocean and sea.
Scientists from University College London and Yale University examined samples on rocks that formed over the last three billion years and discovered that after plants set foot on land about 400 million years ago, there was an astonishing change in the earth’s climate and ocean life.
Examining the changes experienced after plants began to grow on land, scientists revealed that the carbon level in the atmosphere decreased thanks to the clay formation on land, and this decrease triggered seasonal changes such as the ice age.
With the transition of plants to land, marine organisms began to form Described as the movement of carbon between rocks, living organisms and the atmosphere, the carbon cycle is seen as the Earth’s natural thermostat as it regulates temperature over very long periods of time. The researchers, who published their research in the scientific journal Nature, started a study to investigate how this carbon cycle changed over a wide period of time and how the carbon level in the air started to decrease 400 million years ago.
The carbon cycle, which was formed only thanks to the clays found in the oceans 00 million years ago, began to form on the rocks with the transition of plants to land, and thus, a significant decrease was observed in the carbon level in the Earth’s atmosphere.
The scientist involved in the research, Dr. Philip Pogge von Strandmann made the following statements about the article they published; “Our work shows that the carbon cycle has fundamentally different working principles in Earth’s history. We think that two interconnected biological developments took place about 400 to 500 million years ago. The first is when plants come out of the ocean to colonize land, and the second is with silicon from ocean water. “The birth of marine organisms that can form a skeleton for themselves. Prior to these changes, the carbon level in the atmosphere was high, but the transition of plants to land paved the way for the first animal formation on land.”