Atmospheric CO2 Reached The Highest Levels In The Last 3 Million Years

Rodiano Bonacci
Мая 16, 2019

Congratulations humanity! For the primary time in human historical past - not recorded historical past, however since people have existed on Earth - carbon dioxide within the environment has topped 415 elements per million, reaching 415.26 parts per million, in accordance with sensors on the Mauna Loa Observatory, an analysis outpost of the Nationwide Oceanic and Atmospheric Company. Probably the most alarming comment is that this is one of the highest measurement ever recorded on planet Earth since the existence of humans: "Not just in recorded history, not just since the invention of agriculture 10,000 years ago".

This shocking milestone was reported by the climate reporter Eric Holthaus on Twitter.

"We don't know a planet like this".

During the ice ages, carbon dioxide levels in the atmosphere were around 200 ppm.

Climate and water scientist Peter Gleick tweeted, "Atmospheric CO2 levels have now reached 415 ppm". Scientists at the beginning of 2019 predicted that it was only a matter of time before it crossed the 415 ppm precedent. "The increase from previous year will probably be around three parts per million whereas the recent average has been 2.5 ppm", he said.

During the Pliocene Epoch, some 3 million years ago, when global temperatures were estimated 2-3 degrees Celsius warmer than today, Carbon dioxide levels are believed to have topped out somewhere between 310 to 400 ppm.

At that time, the Arctic was covered in trees, not ice, and summer temperatures in the far north are believed to have reached around 15 degrees Celsius (60 degrees Fahrenheit). Amsterdam, New Orleans, Lisbon, Miami - the list of cities that will be submerged is enormous, and as we are already seeing, some cities and coastal communities are already experiencing the impacts of rising sea levels. Yet despite this new measurement, no one has heard a public outcry, nor has the news media made this the most important story of the day because it should be breaking news on all channels all over the world.

However, he noted that the annual peak in carbon dioxide, which fluctuates throughout the year as plants change their breathing rhythms, occurs right now. "It's essentially as simple as that". The NOAA likens Carbon dioxide to leaving bricks in a fireplace that still emit heat after a fire goes out. Going back even farther, here's a look at the Carbon dioxide levels of the past 800,000 years: It's clear that Earth has endured some significant changes to its Carbon dioxide levels in the past, occasionally even doubling for long stretches of time before calming down again.

A 2015 study predicting our climate in 2250 paints a much more calamitous outcome.

"Every time an engine runs we emit Carbon dioxide and it has to go somewhere". Sea levels could rise by 60 metres, which could submerge most coastal cities, such as NY and Washington.

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