Most emissions from our operations are generated from the onsite combustion of fuels in the production of ethylene. Our OE System addresses pollution prevention and establishes expectations for monitoring and minimizing greenhouse gas (GHG) and other air emissions from our facilities. We continuously work to improve energy efficiency and our emissions performance, and we have internal goals to reduce our environmental reportable events.
In 2020, our total direct and indirect GHG emissions from our operations was 9.75 million tonnes of CO2 equivalents (CO2e) compared to 10.34 million tonnes CO2e in 2019. The decrease in emissions is due primarily to updates made to our emissions reporting process in 2020 to align with the World Business Council for Sustainable Development and World Resources Institute’s GHG Protocol. Improvements to our reporting process also revealed a decrease in our Global GHG Emissions Intensity from 0.57 to 0.53 tonnes of CO2e per tonnes product.
CPChem’s Total Aggregated Air Emissions increased slightly compared to 2019, resulting in 9.74 thousand tonnes. However, our Global Air Emissions Intensity remained constant. In 2020, we had 51 reportable emissions events, an increase from 47 in 2019.