1. Measurements of carbon dioxide on very tall towers: results of the NOAA/CMDL program;Bakwin;Tellus,1998
2. Betts, R. A., Jones, C., Jin, Y., Keeling, R., Kennedy, J., Knight, J., et al., 2020. What impact will the coronavirus pandemic have on atmospheric CO2 carbon brief., Available online: https://www.carbonbrief.org/analysis-what-impact-will-the-coronavirus-pandemic-have-on-atmospheric-CO2 (accessed on 4 June 2020).
3. Decrease in CO2 mixing ratio observed in the stratosphere;Bischof;Nature,1980
4. A decade of on-road emissions measurements;Bishop;Environ. Sci. Technol.,2008
5. Temperature-associated increases in the global soil respiration record;Bond-Lamberty;Nature,2010