Скачать или смотреть Dinosaur Teeth Reveal Earth Had 4x More CO2 And It Changes Everything

🦖 Scientists have made a stunning discovery by analyzing dinosaur teeth, uncovering the secret climate of the ancient Earth. A groundbreaking new method reveals that the atmosphere during the age of dinosaurs contained three to four times more carbon dioxide than pre-industrial levels, and global photosynthesis was occurring at twice today's rate.

This research, led by the University of Göttingen, uses oxygen isotopes preserved in incredibly durable tooth enamel to directly measure what dinosaurs breathed. The findings provide a completely new window into our planet's climate history and could help us understand long-term climate dynamics.

🌍 Key Discoveries:
✔️ Late Jurassic CO2: ~4x pre-industrial levels (150 million years ago).
✔️ Late Cretaceous CO2: ~3x pre-industrial levels (73-66 million years ago).
✔️ Spikes in the Data: Teeth from a T. rex and a Diplodocus relative show evidence of sudden CO2 surges, likely from massive volcanic eruptions.
✔️ A New Climate Proxy: This is the first method to use land vertebrates instead of marine fossils or soil carbonates, offering a more direct look at the ancient atmosphere.

#Dinosaurs #ClimateChange #Science #Paleontology #History #CO2 #Geology

Reference: “Mesozoic atmospheric CO2 concentrations reconstructed from dinosaur tooth enamel” published in PNAS. DOI: 10.1073/pnas.2504324122

💬 What do you think a world with 4x the CO2 would look like today? Let us know in the comments!

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