- Global CO2 levels reach a new record high level in 2020. The growth increased despite the reduced global emissions during the traffic and industry slowdown from the Covid-19 pandemic. Compared to 2019, the CO2 levels have increased by at least 2-3 ppm (parts per million). https://www.severe-weather.eu/news/global-co2-high-covid-2020-fa/ 14 comments worldnews