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A recent study reveals that it is possible that Venus has gone from being a temperate and humid world to being the acid greenhouse that it is today with the help of a great volcanic activity.
A scientific article prepared by NASA researchers reveals that the great volcanic activity It lasted hundreds to thousands of centuries and produced enormous amounts of material.
Nowadays, Venus has an average temperature of about 462 °C and an atmosphere 90 times higher than Earth’s. According to the study, these huge volcanic eruptions may have initiated these conditions at some point in Venus’ ancient history.
Specifically, it highlights the research, the occurrence of several eruptions of this type in a short period of geological time (in a million years) could have caused a greenhouse effect runaway that began the planet’s transition from wet and temperate to hot and dry.
In total, 80% of the surface of Venus is covered by large fields of volcanic rock solidified, explained Dr. Michael J. Way of NASA’s Goddard Institute for Space Studies in New York.
“Although we are not yet sure how often the events that created these fields occurred, we should be able to narrow it down by studying the earth historyWay added.
Comparison with Earth
The document also analyzes these “large igneous provinces” in the earth historywhich caused several mass extinctions on our own planet millions of years ago.
“On understanding the record of the great igneous provinces on Earth and Venuswe can determine if these events may have caused the current condition of Venus,” Way said.
Since the origin of multicellular life, about 540 million years ago, life on Earth has endured at least five major mass extinction events. Each of them wiped out more than 50% of animal life on the entire planet.
According to this study and previous ones, most of these extinctions were caused or aggravated by the type of rashes that produce the great igneous provinces.
However, in the case of the Earth, the climatic alterations caused by these phenomena were not enough to cause a runaway greenhouse effectas it did on Venus, for reasons Way and other scientists are still trying to determine.
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