How much CO2 at 1.5 °C and 2 °C?
How much CO<sub>2</sub> at 1.5 °C and 2 °C?, Published online: 29 June 2018; doi:10.1038/s41558-018-0199-5
The atmospheric concentration of CO2 at the time of passing 1.5 °C or 2 °C is unknown due to uncertainties in climate sensitivity and the concentrations of other GHGs. Impacts studies must account for a wide range of concentrations to avoid either over- or underestimating changes in crop yields and land and marine biodiversity.
