Flawed CO2 Data from DC Think Tank Undermines Climate Diplomacy
An independent audit conducted by data company Performeks LLC found that CARMA overestimated the CO2 emissions of its worst ranked emitter, a Chinese power company, by more than 80 million tons. CO2 over-estimates for CARMA’s first, sixth and ninth ranked carbon emitting companies, China’s Huaneng, Datang and Huadian, total 148 million tons of CO2.
In addition to errors at the company level, there are problems at the plant-level. Auditing uncovered an astounding 76 million tons of extraneous CO2 in just 13 Chinese plants.
That would be on the same scale as the 80-100 million-ton CO2 overestimation that crippled Europe’s carbon market in ETS-Phase-1, except that those overestimates were amassed from thousands of installations, compared to CARMA’s 13. The magnitude of these errors is enough to cast doubts on CARMA’s claim that China has surpassed
CARMA’s condemnations are not unique, but neither are they justified. “Mistrust of China in
The CGD attributes the gap to differences in ownership classifications for China’s Huaneng Power. Defining company holdings, says research assistant
Platts data was 17 years outdated in at least one case. CARMA data held
CLP has reported site-specific CO2 emissions since 2002 and supplied detailed data to CARMA, but to no avail. Dr.
The GHG Protocol is the international standard for greenhouse gas accounting, established by the World Resources Institute and World Business Council for Sustainable Development. Universally accepted for a decade, it is now harmonized with the International Organization for Standardization, creating much-needed methodological consistency and full transparency for global CO2 reporting. In contrast, CGD’s unilaterally introduced methodology uses extrapolations from a CO2 database of largely U.S. power plants — not a single installation in mainland China is included in this CO2 emissions database. The full database is not publicly available, defeating CARMA’s principle goal of transparency.
Given that CARMA’s methodology is incompatible with the GHG Protocol, USEPA’s CO2 reporting rule and the EU Directive for CO2 monitoring and verification, the value of CARMA’s data seems as opaque as its methodology.
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SOURCE Performeks LLC