The volume of CO2 was slightly greater than 417 parts per million during May 2020, which is the highest monthly average value ever recorded.
According to readings from the Scripps Institution of Oceanography and the National Oceanic and Atmospheric Administration (NOAA), the volume of CO2 in the air hit an average of slightly greater than 417 parts per million(ppm). This is the highest monthly average value ever recorded and is up from 414.7 ppm recorded in May 2019. The rise in CO2 concentration is not only dependant on human activities but is also driven through processes on the land surface and in the oceans that fluctuate every year. This means that the variability in carbon emissions from vegetation and soil in response to seasonal changes in temperature and soil moisture also adds to the increase in CO2. The study also states that CO2 emissions reductions of 20 to 30 percent have to be sustained for 6 to 12 months for the increase in atmospheric CO2 to slow in a detectable way.