We won’t see greenhouse gas levels drop below significant symbolic threshold within our lifetimes, scientists think

We won’t see greenhouse gas levels drop below significant symbolic threshold within our lifetimes, scientists think

Our planet seems to have crossed a notable symbolic threshold because the global climate is continuously growing warmer.

September month generally records low carbon dioxide (CO2) amounts in the atmosphere and the concentration of this month play a vital role in deciding which levels of the greenhouse gas are going to see change vary in the approaching year. But, the scenario is different this year as in September CO2 levels have stayed high at roughly 400 parts per million. Seeing the case, numerous scientists said that humans won’t see the levels of the greenhouse gas fall below that threshold in their entire life.

The planet has been experiencing a continuous build up of CO2 in the atmosphere since the Industrial Revolution, but the 400 ppm landmark has created a latest normal that was nowhere in on Earth for millions of years.

According to David Black, associate professor in the School of Marine and Atmospheric Sciences at Stony Brook University in New York it was roughly 3.5 million years back, when Earth last time saw 400 ppm carbon dioxide in atmosphere, and aback then global climate was clearly different from the present time.

Professor Black said that Specifically, the Arctic was largely warmer in comparison to present day, and global sea level was around between 15 and 90 feet up than now.

He added, “It took millions of years for the atmosphere to reach 400 ppm CO2 back then, and it took millions of years for the atmospheric CO2 to drop to 280 ppm right before the industrial revolution”.

He mentioned that the main cause of climate scientists’ concerns was the thought that humans took just some centuries in doing what nature does in millions of years. Highest change has been seen in the past 50-60 years.


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