You just grabbed it off the internet. To the best of my knowledge,The event you refer to prior to the politics of global warming, was always hypotesised as an ANTI - matter metoeorite. Also some credit Tesla for the event. Before you say Tesla could not have done it you might want to to look at how much Teslas invetions changed the world. Edison and Westing house stole %90 of their invetions from Tesla.
Some have published evidence, preliminary evidence that increasing volcanic activity is the major factor that is increasing Co2 in the atmosphere. Their funding was promptly cut.