According to the scientists, this indicates volcanic activity did not directly contribute to the death of dinosaurs. The team then developed climate models showing the effects of carbon dioxide release from the volcanic eruptions. Video Loading Video Unavailable Click to play Tap to play The video will start in 8 Cancel Play now"This means volcanoes are not a driver in the mass extinction event." Climate models indicated volcanic activity caused only a gradual global warming of about two degrees, which had no significant effect on marine ecosystems. Donald Penman, a postdoctoral associate at Yale University and study co-author, said: "The K-Pg extinction was a mass extinction and this profoundly altered the global carbon cycle.

Source: Daily Mirror January 16, 2020 18:56 UTC