The World Meteorological Organization (WMO) has expressed concern that carbon dioxide levels in Earth's atmosphere reached record levels in 2016.
The carbon dioxide growth in the last year was 50 percent higher than the average of last 10 years.
Researchers say that the amount of carbon dioxide has reached the level of human activity and El Niño, which can not be seen in 8 million years.
Scientists have warned that such risks are impossible to meet the goal of preventing global warming.
WMO has created greenhouse gas bulletin this year considering the situation in 51 countries.
It found that, in 2016, the average density of carbon dioxide in the atmosphere is 403.3 parts per million or PPM, compared to 400 ppm last year.
"The 30-year carbon dioxide in this network has not been seen so high and ever," said Wuxa Tarasova, head of WMO's Global Atmosphere Monitoring Program.
He said, "The amount of carbon dioxide was the highest during last El Niño, 1997-1998. The growth rate was 2.7 ppm But now the growth rate is 3.3 ppm. This rate is 50 percent higher than the average growth of the last 10 years. "
Due to El Niño, drought can occur and plants can absorb less carbon dioxide.
The report says that the increase in carbon dioxide in the atmosphere in the last 70 years has increased almost 100 times compared to the ice age.*
