It’s been millions of years since Earth’s atmosphere had this much CO2

New reports out of the NOAA and Scripps Institution of Oceanography suggest that the carbon dioxide (CO2) levels in Earth’s atmosphere haven’t been this high in millions of years. It’s a striking discovery that raises even more questions about the current state of our ongoing fight against climate change and how humans are playing a part in it.

We already know that we’ve likely reached a turning point in rising global temperatures, and some argue that we’ll never be able to stop rising sea levels.