Carbon footprint of global natural gas supplies to China

Yu Gan (), Hassan M. El-Houjeiri, Alhassan Badahdah, Zifeng Lu, Hao Cai, Steven Przesmitzki and Michael Wang
Additional contact information
Yu Gan: Argonne National Laboratory
Hassan M. El-Houjeiri: Aramco Services Company
Alhassan Badahdah: Aramco Services Company
Zifeng Lu: Argonne National Laboratory
Hao Cai: Argonne National Laboratory
Steven Przesmitzki: Aramco Services Company
Michael Wang: Argonne National Laboratory

Nature Communications, 2020, vol. 11, issue 1, 1-9

Abstract: Abstract As natural gas demand surges in China, driven by the coal-to-gas switching policy, widespread attention is focused on its impacts on global gas supply-demand rebalance and greenhouse gas (GHG) emissions. Here, for the first time, we estimate well-to-city-gate GHG emissions of gas supplies for China, based on analyses of field-specific characteristics of 104 fields in 15 countries. Results show GHG intensities of supplies from 104 fields vary from 6.2 to 43.3 g CO2eq MJ−1. Due to the increase of GHG-intensive gas supplies from Russia, Central Asia, and domestic shale gas fields, the supply-energy-weighted average GHG intensity is projected to increase from 21.7 in 2016 to 23.3 CO2eq MJ−1 in 2030, and total well-to-city-gate emissions of gas supplies are estimated to grow by ~3 times. While securing gas supply is a top priority for the Chinese government, decreasing GHG intensity should be considered in meeting its commitment to emission reductions.

Date: 2020
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DOI: 10.1038/s41467-020-14606-4

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