Geologists studied rocks in US that would have been on the ocean floor during the Great Dying 252 million years ago . From this they could create a climate model to plot the mass extinction . They believe volcanic eruptions released carbon dioxide into the oceans . And rising acidity 'dealt the final blow ' to an already unstable ecosystem .
Geologists studied rocks in the United Arab Emirates that would have been on the ocean floor during the Great Dying 252 million years ago . From this they could create a climate model to plot the mass extinction . They believe volcanic eruptions released carbon dioxide into the oceans . And rising acidity 'dealt the final blow ' to an already unstable ecosystem .