Table 1 Net-zero CO2 emission years necessary to achieve 1.5 °C and 2 °C future.

From: Deep mitigation of CO2 and non-CO2 greenhouse gases toward 1.5 °C and 2 °C futures

Mitigation pathway

1.5 °C

2 °C

CO2 abatement only

Unsolvable

2030

CO2-driven GHG abatement

2032

2045

Comprehensive GHG abatement

2053

2075

  1. In 1.5 °C pathways, CO2 emissions linearly reduce to −8 GtCO2 yr−1 and stay constant. In 2 °C pathways, CO2 emissions linearly reduce to 0 GtCO2 yr−1 and stay constant.
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