According to the bulletin on greenhouse gases that are published annually by the World Meteorological Organization (WMO), CO2 levels shot up in 2015 and reached an extent scientific that are the 400 parts per million (ppm).
Previously, this was the barrier of 400 ppm had already been touched in some places for several months of the year, but never before on a global scale, and even less in a whole year. Its concentration in the pre-industrial era, for example, was around 278 ppm represented a balance between the atmosphere, the oceans and the biosphere.
The report highlighted that the levels of CO2 is shot in 2016 and reached a new record due to the El Niño phenomenon that has had devastating effects in different parts of the world between 2015 and the early months of 2016.
In agreement with the predictions of the station more ancient that monitors the greenhouse gases, located in Mauna Loa (Hawaii), the concentrations of CO2 remain above 400 ppm throughout 2016 and won’t come down to that level for “many generations.”
possible explanations for this abrupt concentration of CO2 in the atmosphere, are due to the El Niño episode, which caused droughts in the tropical regions, and reduced the capacity of the forests, the vegetation or the oceans to sequester carbon. In fact, as revealed by the bulletin, currently these sinks absorb half of the CO2 emissions, but there is a risk that it will saturate and that would increase emissions.
“If we do not deal with CO2 emissions, we cannot address climate change or limit the temperature increase to 2 ° c with respect to the pre-industrial level,” the document states.
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