The World Meteorological Organization (WMO) has announced that the slowdown in industrial activities caused by general sanitary containment has not mitigated the rise of the main greenhouse gas, carbon dioxide.
Released on Monday, the WMO’s annual report card on greenhouse gases showed that in 2019, the concentration of carbon dioxide in the atmosphere increased sharply and was confirmed in 2020. The secretary-general of the UN agency, Petteri Taalas, explained that we crossed the global threshold of 400 parts per million (ppm) in 2015. And just four years later, we crossed the 410-ppm mark. Our records show no such increase.”
The WMO also pointed out that since 1990, the total radiative forcing caused by persistent greenhouse gases, which induces a warming of the climate system, has increased by 45%. CO2 contributes to this forcing by up to 80%.
According to preliminary estimates in the annual report card, the total annual emission reduction in 2020 will be in the range of 4.2% to 7.5%. However, this reduction will not result in a decrease in CO2 concentrations in the atmosphere this year as these concentrations are the result of past and current cumulative emissions.