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Remaining carbon budgets from 2016 onwards for limiting warming to 1.5°C and 2°C with 50% probability as a function of the additional warming from non-CO2 gases at the time of peak CO2 warming and two different TCRE estimates [21]. Budgets from 2016 onwards were calculated assuming 2090 GtCO2 emitted by 2016 (1890 GtCO2 emitted by 2011 [20] and 200 GtCO2 emitted during 2011–2015 [26]). (Online version in colour.)