Dinosaur Teeth Provide Key Clues to Earth's Climate Past, Revealing High Levels of Carbon Dioxide A new study finds that the Mesozoic Era saw significantly higher quantities of the greenhouse gas than both pre-industrial and modern levels, likely due to volcanic activity

Dinosaur Teeth Provide Key Clues to Earth's Climate Past, Revealing High Levels of Carbon Dioxide: A new study finds that the Mesozoic Era saw significantly higher quantities of the greenhouse gas than both… @SmithsonianMag #DinosaurTeeth #ClimateChange #MesozoicEra #CarbonDioxide #VolcanicActivity