Due to this, the ozone layer, which is the protective shield of the earth, is destroyed. As part of the research these things were revealed by artificially creating an environment that is hundreds of years old. It is known that the ozone layer prevents harmful ultraviolet rays from reaching the earth directly from the sun. However, NASA scientists say that the ash and smoke emitted during volcanic eruptions can contaminate the atmosphere with harmful sulfur dioxide, causing extensive damage to the ozone layer.
It is said that when sulfur dioxide is released into the atmosphere it first turns into droplets, in that order reflecting the heat coming from the sun. He then explained that the atmosphere would cool for a while, but would warm further after absorbing the infrared light well. This would increase water vapor in the region by 10,000 percent, causing a large hole in the ozone layer.
Carbon dioxide is also released by flood basalts (lava and smoke released by volcanoes year after year). However, their research has shown that it does not emit much heat and has little effect on ozone. NASA scientists say similar developments have taken place on Mars and Venus.
This is in stark contrast to previous studies that suggest that volcanoes cool the atmosphere. Although widespread flood-basalt eruptions on the planets Mars and Venus have helped to warm the atmosphere, this suggests that water scarcity in the world could destroy long-term habitation.
“We expect severe cooling in our research. However, we found that the cooling was drained by the warming effect,” said Scott Guevitch, a scientist at NASA’s Goddard Space Flight Center. The results of this research were published in the Geophysical Research Letters. Ozone depletion is not surprising but at the same time indicates the possibility of destruction. “The ozone hole in Antarctica is shrinking by two-thirds of the global average for the entire planet,” he said.
NASA has used the Goddard Earth Observing System Chemistry Climate Model for a lengthy four-year study of the Columbia River Basalt (CRB) eruption 15–17 million years ago in the northwestern United States.