Cautious Optimism and Incremental Goals Toward Stabilizing Atmospheric CO2

A. P. Ballantyne, P. Ciais, J. B. Miller

Research output: Contribution to journalComment/debate

6 Scopus citations


Fossil fuel emissions of CO2 to the atmosphere appear to have leveled off in recent years; however, atmospheric CO2 concentrations continue to rise. Our simple analysis shows that peaks in the growth rates of human population and fossil fuel emissions have been observed, but the growth rate of atmospheric CO2 has reached record levels and shows no indication of peaking. Before atmospheric CO2 concentrations can be stabilized at safe levels, a peak in the CO2 growth rate must be achieved.

Original languageEnglish
Pages (from-to)1632-1637
Number of pages6
JournalEarth's Future
Issue number12
StatePublished - Dec 2018


  • global C cycle
  • human population


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