Over the past few weeks there have been many reports of localised air quality improvements as the world has locked down to combat the coronavirus pandemic.
However, recent data from the United States National Oceanic and Atmospheric Association (NOAA) shows global carbon dioxide (CO2) levels rising sharply.
In April 2020 the average concentration of CO2 in the atmosphere was 416.21 parts per million (ppm), the highest since measurements began in Hawaii in 1958.
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