Progress on Net Zero-Aligned Targets table has been updated as of December 31, 2023. The table includes each sector for which we have set net zero-aligned targets; the emissions scope(s) included in the boundary of the target; the unit of measurement; the baseline year; the portfolio carbon intensity baseline; the 2030 target number (both as an output-based carbon intensity figure and as a percentage reduction from baseline); the portfolio carbon intensity as of December 31, 2023; and the percentage change in portfolio carbon intensity from the baseline figure. To calculate portfolio baseline carbon intensities, we use client carbon intensity data for the baseline year and exposure data from the following year, except for the Aviation sector, where the baseline year and exposure year are the same (2021). Our targets are based on data and scenario projections available as of September 2023. Future updates to the IEA NZE scenario and/or other inputs — for example, changes in global emissions, available technologies or economic conditions — may result in changes to the projected emissions trajectories, and we may therefore update our targets for these sectors. We monitor these changes, as well as improved visibility, quality or availability of data, and assess the need to revise our baselines and targets as appropriate. We revised baselines for the Shipping and Aluminum sectors this year.
For the Energy Mix target, our 2030 net zero-aligned target is to reduce Scope 3 (end use) emissions carbon intensity to 29.5 grams of CO2 per megajoule, which is a 36% reduction from the 2019 portfolio baseline of 45.9 grams of CO2 per megajoule. As of December 31, 2023, our Energy Mix portfolio carbon intensity was 34.8 grams of CO2 per megajoule, which is a 24.1% decrease from our 2019 portfolio baseline.
For the Oil & Gas Operational sector, our 2030 net zero-aligned target, which includes Scopes 1 and 2 emissions, is a 45% reduction in operational carbon intensity from the 2019 portfolio baseline of 4.9 grams of CO2 equivalent per megajoule. As of December 31, 2023, our Oil & Gas Operational portfolio carbon intensity was 4.7 grams of CO2 equivalent per megajoule, which is a 4.0% decrease from our 2019 portfolio baseline.
For the Electric Power sector, our 2030 net zero-aligned target is to reduce Scope 1 emissions carbon intensity to 105.3 kilograms of CO2 per megawatt-hour, which is a 69% reduction from the 2019 portfolio baseline of 342.6 kilograms of CO2 per megawatt-hour. As of December 31, 2023, our Electric Power portfolio carbon intensity was 268.8 kilograms of CO2 per megawatt-hour, which is a 21.5% decrease from our 2019 portfolio baseline.
For the Auto Manufacturing sector, our 2030 net zero-aligned target is to reduce Scopes 1, 2 and 3 (tank-to-wheel) emissions carbon intensity to 86.1 grams of CO2 equivalent per kilometer, which is a 48% reduction from the 2019 portfolio baseline of 164.8 grams of CO2 equivalent per kilometer. As of December 31, 2023, our Auto Manufacturing portfolio carbon intensity was 126.4 grams of CO2 equivalent per kilometer, which is a 23.3% decrease from our 2019 portfolio baseline.
For the Aviation sector, our 2030 net zero-aligned target is to reduce Scope 1 (tank-to-wake) emissions carbon intensity to 625.0 grams of CO2 per revenue ton kilometer, which is a 36% reduction from the 2021 portfolio baseline of 972.6 grams of CO2 per revenue ton kilometer. As of December 31, 2023, our Aviation portfolio carbon intensity was 808.0 grams of CO2 per revenue ton kilometer, which is a 16.9% decrease from our 2021 portfolio baseline.
For the Shipping sector, our 2030 net zero-aligned target is to reduce Scope 1 (tank-to-wake) emissions carbon intensity to 8.4 grams of CO2 equivalent per metric ton nautical mile, which is a 26% reduction from the revised 2021 portfolio baseline of 11.4 grams of CO2 equivalent per metric ton nautical mile. The revised 2021 portfolio baseline for Shipping is 11.4 g CO2 per metric ton nautical mile from previously disclosed 12.5 g CO2 per metric ton nautical mile . As of December 31, 2023, our Shipping portfolio carbon intensity was 11.9 grams of CO2 equivalent per metric ton nautical mile, which is a 4.9% increase from our revised 2021 portfolio baseline.
For the Iron & Steel sector, our 2030 net zero-aligned target is to reduce Scopes 1 and 2 emissions carbon intensity to 0.981 metric ton of CO2 equivalent per metric ton of crude steel, which is a 30% reduction from the 2020 portfolio baseline of 1.412 metric ton of CO2 equivalent per metric ton of crude steel. As of December 31, 2023, our Iron & Steel portfolio carbon intensity was 1.390 metric ton of CO2 equivalent per metric ton of crude steel, which is a 1.5% decrease from our 2020 portfolio baseline.
For the Cement sector, our 2030 net zero-aligned target is to reduce Scope 1 and 2 emissions carbon intensity to 460 kilograms of CO2 equivalent per metric ton of cementitious product, which is a 28% reduction from the 2020 portfolio baseline of 639.3 kilograms of CO2 equivalent per metric ton of cementitious product. As of December 31, 2023, our Cement portfolio carbon intensity was 634.6 kilograms of CO2 equivalent per metric ton of cementitious product, which is a 0.7% decrease from our 2020 portfolio baseline.
For the Aluminum sector, our 2030 net zero-aligned target is to reduce Scopes 1 and 2 emissions carbon intensity to 6.5 metric tons of CO2 equivalent per metric ton of aluminum, which is a 24% reduction from the revised 2021 portfolio baseline of 8.6 metric tons of CO2 equivalent per metric ton of aluminum. The revised 2021 portfolio baseline for Aluminum is 8.6 g CO2 per metric ton of aluminum from previously disclosed 8.7 g CO2 per metric ton of aluminum. As of December 31, 2023, our Aluminum portfolio carbon intensity was 8.8 metric tons of CO2 equivalent per metric ton of aluminum, which is a 2.2% increase from our revised 2021 portfolio baseline.