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CO2 concentration in air hits incredible record

Such a level of CO2 takes us back almost 5 million years and does not bode well for the future.

The Mauna Loa Observatory, located in the Hawaiian archipelago at the top of a desert volcano, aims to record the level of CO2 in the atmosphere. This measuring station has just shared one of the most unexpected news. In recent weeks, rates above 420 parts per million have been recorded, the latest going back to April 3 with 421.21 parts per million.

A shocking news that did not fail to react Greta Thunberg, the Generation Z environmental figure. In a tweet, she said “ if this is confirmed, then it is truly revolutionary. But not in a positive way “. Indeed, it is a rate not reached for approximately 5 million years, it is therefore an undesirable and rather catastrophic record of its kind.

Up to 40 million years ago

If this information is overwhelming, it is because the level of CO2 in the air is responsible for all the other records recorded in recent years: temperature records, ocean warming and acidification, or even melting. ice and extreme weather events. If the climate change is visible and very real, what we can not suspect is that the concentration of CO2 in the air is heading dangerously towards a rate recorded when there were not even humans on Earth yet.

Indeed, the current peak would have been recorded only during the geological era preceding ours, namely the Pliocene. More importantly, it could even be traced back to the rate dating back to the Miocene geological epoch, dated to over 15 million years ago, and by the end of the century we might even go back to around 40 million. years back, at the time of the Eocene with peaks reaching 1000 parts per million. These predictions are valid if humanity does not agree to drastically change its behavior towards the environment, while taking into account the difficulty linked to overpopulation.

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