Geologists studied rocks in the United ocean Emirates that would have been on the ocean floor during the Great Dying 252 million years ago . From this they could create a geological model to predict the mass extinction . They suggest volcanic activity released carbon dioxide into the oceans . And rising waters ' 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 .