In 2018, international average concentrations of this greenhouse gas, which can be a byproduct of burning fossil fuels, attained 407.8 parts per thousand, meaning for each 1 million molecules of gas in the air, almost 408 were carbon dioxide. The findings follow a trend that reveals the world is continuing to heat at an alarming speed.
“There is not an indication of a downturn, let alone a decrease, in greenhouse gas concentration in the air despite all of the obligations under the Paris Agreement on Climate Change,” WMO Secretary-General Petteri Taalas stated in a statement.
Carbon dioxide traps heat from sunlight and may linger in the air for centuries.
The amount of carbon dioxide from the air has increased sharply as a consequence of human actions, together with the 2018 worldwide typical representing a 147 percent increase over the pre-industrial amount in 1750, according to the WMO.
The company’s report revealed that the growth in carbon dioxide from the air from 2017 to 2018 had been over the average growth rate over the last ten years, which had been just more than 2 parts per thousand each year.
Before this season, on May 14, the daily concentration of carbon dioxide from the air hit the maximum amount ever recorded in human history, in 415 parts per thousand.
Though international levels have not reached that standard yet, Taalas reported the new record remains bothering.
“It might be worth remembering that the last time that the Earth experienced a similar concentration of CO2 has been 3-5 million decades back,” he explained of their 407.8 parts per million landmark. “Back then, the fever has been 2-3 [degrees Celsius] warmer, sea level had been 10-20 meters greater than today.”
The WMO report also found that concentrations of 2 additional greenhouse gases, including methane and nitrous oxide, also have seen an uptick over the last ten years.
Methane is a particularly powerful greenhouse gas and global moderate concentrations of methane in 2018 attained 1,869 parts per billion, and it can be a 259 percent increase within pre-industrial levels.
It is estimated that roughly 60% of methane emissions are derived from individual actions, like from landfills, cattle breeding and particular kinds of agriculture, although another 40 percent comes from organic sources.
Nitrous oxide, that can be emitted from industrial and agricultural activities, is your third-most potent greenhouse gas and also depletes the ozone layer which protects the planet from the sun’s ultraviolet rays.
Atmospheric levels of nitrous oxide — a chemical compound commonly called laughing gas — in 2018 attained a mean of 331.1 parts per billion, and this has been a 123 percent increase over pre-industrial levels.
The WMO report has been released before the forthcoming United Nations Framework Convention on Climate Change conference, which is being held by Dec. 2 to 13 in Madrid, where authorities agents will gather to evaluate responsibilities made to fight climate change beneath the Paris Agreement.