Chile’s conditional NDC targets 90–95 MtCO2e/yr by 2030 (14-18% below 2016 values). To be in line with a 1.5°C pathway, Chile’s emissions should be close to 64 MtCO2e (41% below 2016 levels) by 2030. The gap between Chile’s target and 1.5°C compatible pathway is 26 MtCO2 e or an extra 24% reduction below the 2016 reference year.
To be on track with 1.5°C pathways assessed here, Chile would need to reduce GHG emissions to 52–71 MtCO2e/yr by 2030, which is 36–53% below 2016 levels when excluding LULUCF sinks. In all scenarios, GHG emissions should have peaked by 2020 at the latest. However, Chile is aiming to peak emissions in 2025.
Steeper GHG emissions reductions are required to be aligned with 1.5°C pathways. Some of the most effective measures for rapid emission reductions would be more aggressive substitution of fossil fuels with renewable energy and earlier coal and gas phase-out dates.
Long term pathway
The 1.5°C pathways assessed here show that Chile would need to reduce emissions to between 8–20 MtCO₂e by 2050. Chile has set a goal of achieving net zero GHG emissions by 2050, relying on an estimated land carbon sink of -65 MtCO₂e/yr.12 The assessed pathways show that the remaining emissions in 2050 come mainly from agriculture and waste and would need to be compensated through the use of carbon dioxide removal (CDR) approaches, including reforestation/afforestation.19
9 Gobierno de of Chile. Presidente Piñera presentó plan para cerrar todas las centrales energéticas a carbón para que Chile sea carbono neutral. 4 de Junio. 2019.
10 Government of Chile. Chile’s Nationally Determined Contribution – Update 2020. 2020.
17 Ministerio de Energía. Energía 2050: Política Energética de Chile. 2015.
18 Gütschow, J., Günther, A. & Pflüger, M. The PRIMAP-Hist national historical emissions time series (1990-2021). 2022.
19 While global cost-effective pathways assessed by the IPCC Special Report 1.5°C provide useful guidance for an upper-limit of emissions trajectories for developed countries, they underestimate the feasible space for such countries to reach net zero earlier. The current generation of models tend to depend strongly on land-use sinks outside of currently developed countries and include fossil fuel use well beyond the time at which these could be phased out, compared to what is understood from bottom-up approaches. The scientific teams which provide these global pathways constantly improve the technologies represented in their models – and novel CDR technologies are now being included in new studies focused on deep mitigation scenarios meeting the Paris Agreement goal. A wide assessment database of these new scenarios is not yet available; thus, we rely on available scenarios which focus particularly on BECCS as a net-negative emission technology. Accordingly, we do not yet consider land-sector emissions (LULUCF) and other CDR approaches.
Chile has set a target of reducing emissions from the energy sector by 25% below 2018 levels by 2030, and 60% by 2050.
The country’s primary energy mix is currently dominated by fossil fuels at around 68% (in 2020). This share will need to approximately halve by 2030, with some 1.5°C pathways showing a fossil fuel share of less than 5% in 2040.
Different approaches could be taken to decarbonise the energy mix: Increasing the share of renewable energy to 46–53% by 2030 and 100% by 2050 would avoid the need for carbon dioxide removals (CDR). Alternatively, a lower penetration of renewable energy would require an increasing use of CDR technologies to compensate emissions from remaining fossil fuels.
Key emissions benchmarks of Paris compatible Pathways for Chile. The 1.5°C compatible range is based on the Paris Agreement compatible pathways from the IPCC SR1.5 filtered with sustainability criteria. The median (50th percentile) to 5th percentile and middle of the range are provided here. Relative reductions are provided based on the reference year.