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The scientists in a key observatory of Hawaii reported that the level of carbon dioxide gas has beaten a nightmare landmark, reaching a strength not witnessed on this planet for millions of years.
James Butler of NOAA`s Earth System Research Laboratory calls it a" milestone" that points toward a repeated headway of swelling carbon dioxide. The UN climate change discussions have taken this trend seriously. Many climate researchers have regarded this threshold as unsafe
The instruments revealed that the carbon dioxide gas has crossed the level of 400ppm.The fact was revealed by the National Ocean and Atmospheric Administration.
The scientists consider the 400 ppm capped level of carbon unsafe.
In 800,000 years or 5 million years the carbon dioxide gas has crossed the limits in the atmosphere.
The UN climate change discussions have taken this trend seriously. Many climate researchers have regarded this threshold as unsafe.
Some climate scientists believe to push back the level to 350ppm for meeting the global goal of maintaining the average temperature in this century at 2degrees Celsius or 3.6 degrees Fahrenheit.
Although there are many observatories in the world, but the Mauna Loa Volcano on the island of Hawaii is the standard spot for recording the carbon dioxide levels.
At Mauna Loa two measuring gadgets recorded a Keeling Curve of carbon dioxide level at 400.03 ppm. The level of 400 ppm was recorded in many arctic observatories one year ago.
Scientists like Butler of Boulder, Colorado fear that if this process continues without control the average carbon dioxide level could surpass the 400 ppm within a year or more. During the last 800,000 years the carbon dioxide gas levels varied between 180 ppm and 280 ppm.
Butler said that the extensive use of coal and oil for the period of Industrial Revolution increased the level, of carbon dioxide to about 290 ppm by the close of the 19th century. However, the concentration rate recorded an exorbitant increase from 370 and 380 ppm in the 20th century.
The carbon dioxide released in the atmosphere remains trapped in it for hundreds of years and increasing greenhouse gas emission has added to its level.
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