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Climate mitigation potential of 20 nature-based solutions (in 2030)

Unit: GtCO2e (billion tonnes of CO2 equivalent) per year

Low cost portion of <2C ambition

<2C ambition

Maximum mitigation with safeguards

Source: Natural climate solutions, Griscom et al. (2017)

Light coral portions of bars represent cost-effective mitigation levels assuming global ambition to hold warming to <2C (<100 USD per tonne of CO2e per year). Dark coral portions indicate low cost (<10 USD per tonne of CO2e per year) portions of <2C levels.