Carbon Dioxide Could Reach Levels Unseen in 50 Million Years

Carbon Dioxide Could Reach Levels Unseen in 50 Million Years
Carbon Dioxide Could Reach Levels Unseen in 50 Million Years

No, the headline is not a typo. Current carbon dioxide levels are unprecedented in human history and are on track to climb to even more ominous heights in just a few decades.

If carbon emissions continue on their current trajectory, new findings show that by mid-century, the atmosphere could reach a state unseen in 50 million years. Back then, temperatures were up to 18 degrees Fahrenheit (10 degrees Celsius) warmer, ice was almost nowhere to be seen and oceans were dramatically higher than they are now.

The implications of the research, published on Tuesday in Nature Communications, are some of the starkest reminders yet that humanity faces a major choice to curtail carbon pollution or risk pushing the climate outside the bounds that have allowed civilization to thrive.

Read More on LiveScience.com: Carbon Dioxide Could Reach Levels Unseen in 50 Million Years

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