Data on consumption-based CO2 emissions has become increasingly available over the past years. These data raise the awareness of the link between final goods and the environmental pollution caused by upstream production processes. Consumers of final products learn where in the world CO2 was emitted along the upstream production chain. For producers of final products these data provide benchmarks for total CO2 emitted in upstream production processes. These are used together with an extended version of the inverse important coefficient methodology to identify ‘emission hotspots’. ‘Emission hotspots’ are defined as countries/industries where a bulk of the upstream emissions occur and where a change in technology brings about the largest decrease in upstream emissions. This knowledge provides a basis for well-targeted technology transfers to clean up the upstream production chain, thus reducing the emission footprint of final goods production. The highest impact overall in a significant number global value chains analyzed here would be replacing upstream use of coal electricity by low carbon electricity. These results support the call of the ‘Powering Past Coal Alliance’ at the COP23 of ending the use of coal power sooner rather than later.
Journal of Cleaner Production – Elsevier
Published: Sep 1, 2018
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