One to ponder. At https://phys.org/news/2022-03-soil-erosion-wildfires-coffin-triassic.html … researchers have revealed that soil erosion as a result, or cap in hand with wildfires, contributed to the end of the Triassic mass extinction event – as well as acid and hydrogen sulfide in the oceans as a result of a surge in volcanic activity. These, they noted, were similar to modern wildfires as a result of climate change. No doubt this was included to garner approval for publication and speaks volumes on how climate change and the huge sums of money involved in subsidies are affecting all kinds of research. As far as the actual article is concerned it sounds as if an impact was responsible for the end of Triassic extinctions – once again. Gnerating wildfires, volcanoes, and noxious gases etc.
At https://phys.org/news/2022-03-stratospheric-sulfur-chicxulub-impact-climate.html … although the climate is once again a focus of this research paper it is more to do with a sort of nuclear winter scenario in the aftermath of a known impact event, at the end of the Cretaceous. The impact crater has been located at Chicxulub. The blast and fallout ignited wildfires around the world, and volcanism in diverse locations. The impact ejected rock dust, soot, and various volatiles into the atmosphere – as far as the stratosphere. It blotted out the sun and this may have lasted for years, it is speculated, adding to the decline in life at the surface. Sediments show that the dust and soot and volatiles eventually returned to the surface, in the form of acid rain, or rain rich in particles generated by the impact.